Original subtitles

(This drama is based on a true story.)

(The plot was adjusted for entertainment purposes only.)

(We have no intention to offend any careers,)

(encourage immoral sexual values,)

(or create a pessimistic disposition of a gender or a group of people.)

(We would like to apologize in advance for any misunderstandings.)

(Presents)

(Theory of Love)

Were you talking to Min?

Didn't I warn you that he's strange?

You can't let things be. You have to do something.

- Ah! - Karn.

Are you okay? Does it hurt?

What happened to your wrist?

Stop getting your hopes up.

I won't get back together with you.

Yes, I'm coming.

Karn?

Why would you do that to me?

- Why? - Karn, stop!

- Stop! Calm down. Karn. - Why did you do it?

What's up with you?

What's up with me? Stop feigning innocence!

And what's this?

I suspected right from the start that it was you.

But you managed to sway me into thinking it wasn't.

But it was you in the end.

You've been harassing me after all this time!

It wasn't me, Karn.

It wasn't you? Then who?

You were the only person who had access to my bedroom.

It could've been someone else.

Are you insulting me?

I'm not. I'm just saying it might've been someone else.

One of your customers?

They might've gone upstairs while you weren't watching.

Okay. If you're convinced it was me,

then tell me why I did it.

You might've wanted to blackmail me.

You might be sick in the head.

Or I didn't let you have your way and you wanted to defeat me.

I should have never trusted a guy I met on a dating app.

Yes, I might've been upset you didn't let me have my way.

But I'm not a total scumbag who would do that.

Karn.

Karn,

calm down. Get a hold of yourself.

Look into my eyes.

Didn't I tell you that

you can tell how someone feels by looking into their eyes?

So look at me.

Ask yourself whether I'm lying or not.

Then...

Then who was it?

What do they want from me?

Why would they do this?

Calm down.

Why would they do this?

I don't know either.

But if things are getting this intense,

they probably won't stop until they get what they want.

In the meantime,

I think I should keep you company.

I don't want you to go through this kind of thing alone.

Besides, it'll serve as proof that if something happens,

then I'm not the culprit.

Calm down.

You can sleep on the couch.

I still don't trust you.

Sleeping in the bedroom is no different.

If I were actually going to do something to you,

I could do it in a few steps.

It is different.

We're FWB. We can't share a bed.

You're acting as if we've never done that before.

That's only for sex.

Do you think I'm still in the mood with all this going on?

All right. I'll sleep upstairs.

But I'll sleep on the floor.

And if you still refuse to trust me,

you can hold something in your hand

while you're asleep.

Something hard and heavy enough to beat me to death.

Your guitar then.

It should be hard and heavy enough.

No way.

I need this to follow my dreams.

You can't break it.

Your dreams?

What? Do you want to become a musician?

That's right. I want to release my own music.

I'm halfway there now.

It should be ready soon.

Try finding someone.

Get close to her.

It's her. I've made the choice.

What's the matter?

Oh, I have panic disorder.

And you need medication?

That's right.

It was worse at first.

I had to stop working to focus on treatment for years.

I've gotten much better now.

But I still have to take my medication.

I heard he's weird.

He dropped off the radar for a while

for no reason.

What caused it?

Are you saying you've had it before? Is that why you're asking?

Mm.

My ex used to beat me up.

After we broke up,

whenever I'd see or think of him,

it would flare up.

It's probably

similar to what you have.

Have you gotten better now?

Yes. I'm a lot better now too.

You're as tough as I thought.

So, what's the cause of your condition?

It might've been

due to my parents' separation. I went to live with relatives.

After that,

I've always had it.

People go their separate ways after falling out of love.

But their child has to bear the brunt of the pain.

Even though you're in pain,

you smile more often than I do.

You're also a tough one.

Do you think FWB

give each other support like we're doing right now?

I should go to bed.

Hurry up and go to sleep.

Mm.

(Whore)

What did you throw away?

Oh, it was nothing. Let's head back inside.

- Karn, it was nothing. - Let go of me!

- What did you throw away? - It was nothing. Karn?

(Whore)

It was on the gate when I came out to open it.

So I threw it away.

Why didn't you show it to me first?

Because I knew you'd be stressed if you saw it

and whoever did it would get even cockier.

Do you now believe that I’m not behind all this madness?

Just throw it away.

If you want to know what I want,

cut ties with the guy who's with you right now.

Or both of you are going to end up

with a funeral wreath like the one I sent you.

Who sent you a text?

Was it them?

Karn?

What did the text say?

It was nothing.

Karn.

You don't have to tell me.

But I'd like you to remember

no matter what happens,

as long as I'm with you,

you'll be safe.

Aoy, Chod, you're probably wondering

why I didn't tell him

what the stalker wanted from me.

It might sound selfish.

But I'm scared that if he finds out,

he might not want to stay with me.

He might not want any trouble

and decide to walk away from me.

The only thing I know

is that I don't want him to leave just yet.

If you want to know what I want,

cut ties with the guy who's with you right now.

Or both of you are going to end up

with a funeral wreath like the one I sent you.

Oh, hi!

Hi, Ava.

Hi, Min.

So Min isn't the stalker.

But if they sent you a text,

then they're not happy you're with him.

Karn, think carefully.

Was there a guy who was so into you that

he wouldn't want you to be with anyone else?

I don't think so.

What about Ben?

You told me

when you broke up, he threatened you

and said he'd never let you feel happiness for the rest of your life.

I'll never let you

feel happiness again for the rest of your life.

Things are getting out of hand.

You're lucky Min decided to stay

and didn't bail on you.

I would've left ages ago if I were him.

I wouldn't put my life at risk for something like this.

Huh?

Maybe he's got feelings for you?

No, I don't think so.

He only wanted to prove that he wasn't behind

everything that's going on.

I guess you have feelings for him as well.

Just be honest with him.

If he feels the same way,

then you two can be holding hands,

getting through this together.

How is that even possible?

I came up with the "No love, no feelings" rule.

Ugh, Karn! Forget the darn rules!

You never know when death's going to come for you.

Stop fixating on those stupid rules.

All right. Give me some time.

I need to prove something first.

And I'll tell him.

Are you sure?

Yes.

Where are you going?

On an errand.

Let me come with you.

I don't want you to go alone.

No,

you can't.

It's private.

How about this?

Let's set up a tracking app

in case something happens to me again.

So that I'll be able to notify you,

and you'll know where I am.

But if nothing happens,

I'll hurry to you at work as soon as I'm done.

I promise.

All right.

- I'm really sorry. - It's okay.

Be careful, you might cut yourself.

A broom might be better.

I've really changed.

I'm not the old Ben anymore.

No need to be scared.

Karn?

How are you doing?

You asked to see me. What's the matter?

I wanted to talk.

Sure. Let me know if there's a problem. Anything.

Fire away.

There's no problem.

I just want to ask you something.

Do you still have feelings for me?

I'm still in love with you.

But I heard

you've been with plenty of women since breaking up with me.

I've been trying to find someone to replace you.

But I haven't been able to,

no matter how hard I try.

No one treats me as nicely as you do.

And you're going to

do anything

so that I'll go back to you,

especially when you see I've found someone else?

Anything? Such as?

Well,

threatening, harassing,

anything to prevent me from being happy

like what you said to me when we broke up.

Karn,

I would've done it ages ago if I was going to do it.

Why would I start now?

Back then, I said it

out of anger.

Besides, you know I'm still in love with you.

If I did that,

you'd be even less likely to come back to me.

So why would I do that?

Karn,

I didn't do anything

apart from feeling remorseful,

trying to change myself for the better,

and waiting for the day you come back to me.

I'm really sorry

for hurting you.

I'll believe you.

Karn,

is that all you're going to ask me?

Karn?

Karn, hold on.

Sure. Thank you.

Do you still have feelings for me?

I'm still in love with you.

I didn't do anything

apart from feeling remorseful,

and trying to change myself for the better.

Karn, don't.

I'll go and check it out.

Hey, stop! I said stop!

Stop!

Min!

Min!

Min!

Min!

Help! Call an ambulance!

Min! Can you hear me?

Min!

You have to be okay. Min!

Can you hear me?

Min!

Min!

- You have to help him! - Please wait outside.

We've treated his injuries.

He should regain consciousness soon.

But in any case, we'll need to perform a CT scan on his brain.

Then we'll go from there.

Thank you.

You must be satisfied, you scumbag.

If you want to know what I want,

cut ties with the guy who's with you right now.

Or both of you are going to end up

with a funeral wreath like the one I sent you.

(Ben)

Hello, Karn? Where are you?

I saw the news on social media.

Are you okay? Are you hurt?

Ben, you said

you'd help me with anything. Is that true?

Of course.

I need your help with something.

I'm sorry! I won't do it again!

I did it because I'm obsessed with Karn.

I really like her.

I'm sorry. I won't do it again.

I did it because I'm obsessed with Karn.

I really like her.

You really like her?

Yes.

Karn is...

my girlfriend!

Look at the camera and apologize to her.

I'm sorry, Karn! I won't do it again!

You won't?

If you do, you're dead!

He's the guy you met on the dating app.

He confessed to everything.

He's really into you.

And he's been following you since the two of you first met.

So I threatened him, saying I'd go to the police.

So he promised to leave you alone.

Why didn't you take him to the police?

I didn't want it to be traced back to you.

I think you can rest assured now.

No one's going to harass you anymore.

I won't feel at ease

until Min gets better.

You must really love him.

How long have you been together?

We're not together.

We're not in a relationship.

Does that mean

I still might have a chance?

You don't have to answer right now.

I understand. I put you through a lot.

Anyway, I want you to know

I'll wait no matter what.

Thank you for worrying.

And thank you for the help.

If you really want to thank me,

then let me treat you to a meal.

Okay?

Are you freaking kidding me?

Don't!

I've prepared dinner for you.

Have a seat.

Thank you so much for coming.

I've been enjoying cooking recently.

So I'd like you to try the food I made.

I'm not really that fussed.

I just want to repay you for your help.

Here. I'll pour you some wine.

It's okay. I don't drink.

I only planned to have dinner and leave.

I'm not planning to stay long.

You're really not going to forgive me?

I forgive you.

But you thinking that I'll come back to you?

That'll never happen.

I was able to forgive you,

but it doesn't mean I'll be able to fall in love with you again.

So the most I can give you

is friendship.

All right.

Okay. Friendship it is.

At least I'm still in your life.

Here.

This is very special.

Have a taste.

Here you go.

Try it.

All right. I'll try this first.

You're awake?

Karn, how are you doing? Are you safe?

I am.

I'm on my way to you now.

Take it easy.

How are you feeling?

Are you dizzy? Does your head hurt?

I'm okay.

And where have you been?

I went to see Ben.

Why did you?

Didn't you say he physically abused you?

I only had dinner with him as a thank-you

for dealing with that sicko.

The thing is,

I didn't know what I was supposed to do.

So I asked him to help

find out who that stalker was,

including the person who drove into you.

Karn,

what happened to me

was only an accident.

There's no reason why they would hurt me.

Of course there is.

Because you're with me.

I'm not assuming things.

They texted me that day and threatened to hurt you.

The same day they sent the funeral wreath and photos.

And they actually did it.

That's why you're in this state.

Karn,

why didn't you tell me?

If I'd known,

we would have been able to keep an eye out.

You wouldn't have had to ask for help from your ex.

What are we?

Why do we have to help each other that much?

That's right.

We're just friends with benefits.

We're not supposed to fall in love

or have feelings for each other.

But what else can I do?

I already have feelings for you.

Min,

what are you talking about?

I'm serious.

I have feelings for you.

Now, tell me.

What should I do next?

You have to be able to stop your feelings.

But if you can't,

then we have to end this.

Why didn't you tell me?

If I'd known, we would have been able to keep an eye out.

You wouldn't have had to ask for help from your ex.

What are we?

Why do we have to help each other that much?

We're just friends with benefits.

We're not supposed to fall in love or have feelings for each other.

But what else can I do?

I already have feelings for you.

Now, tell me.

What should I do next?

Aoy, Chod,

although I said that to him,

I was still confused about what to do next.

Both of us had feelings for each other.

Should we respect the rules

and end this relationship?

Or should we continue and make things right?

Like two people dating, going out,

and being serious about the relationship.

But while I was feeling confused,

I discovered a truth of some kind.

Writing a love song without being in love.

Find an interesting woman

and get close to her.

Create special moments.

FWB. No love, no feelings.

You've really got to feel it.

Part ways after the song's finished.

No way.

I need this to follow my dreams.

You can't break it.

Your dreams?

What? Do you want to become a musician?

That's right. I want to release my own music.

I'm halfway there now.

It should be ready soon.

They say if you look into someone's eyes,

you'll be able to tell how they feel.

This bouquet

is for you.

Shouldn't you deal with your injury first?

Where's your first aid kit? Let me help you.

I was worried about you.

How could I have waited?

Karn!

What's wrong?

What happened?

Why are you crying?

Have you been drinking?

Karn?

Finally,

you're back.

The guy we hired to confess

threatened to expose us unless we pay him more.

Let him have it.

But if he keeps pestering,

he's dead.

I'm having lunch with my ex here.

So I'd like to stir up some drama to make it up to her.

- I'm really sorry. - It's okay.

I won't do it again.

What kind of blood is this? It's so sweet.

Where's my money?

Fun with no strings attached.

The person who develops feelings first will hurt the most.

And the person who doesn't will never get hurt.

Ben and I are

getting back together.

I lied to you?

I already proved to you I wasn't the stalker.

Are you free tonight?

I want to see you.

Karn, are you really going back to him?

I felt the same way when I thought you were the stalker.

Admit it, Min. This is your bracelet, isn't it?

How come it's at my house?

Are you really a musician?

He doesn't know how to play, but the pose is right.

As long as the pose is convincing.

Go after her and catch her.

- It was nothing. - What was the text?

It was nothing.

You're not going to tell me?

Calm down.

As long as I'm with you,

- you'll be safe. - Twenty more.

Tell her. Don't scramble her head.

- Twenty. - Twenty.

Whatever.

Twenty.