Yoona: Since the moment you told me you have no feelings toward me, so I just realize how stupid am I to overthink so much, and I actually found out that I'm just being too dependent on you. 

Sehun: You fall for me once, and I fall for you since the beginning, why can't we be together?

Yoona: That's not love, that is just because of my silly dependence on someone who treated me too good. 

Sehun: Yoona-ssi..

Sehun holds Yoona's hand.

Yoona: Oppa, I don't want you to misunderstand me, so please just be my deskmate and neighbours.

Sehun: You know I don't give up that easily,

Yoona: You know I can be very cruel towards every of my persuers.

Sehun: You are not that type of person.

Yoona: I am not but doesn't mean that I can't be.

Sehun: What happened to you?

Yoona: Nothing happened to me, stop being around with me, if not it will be worse than being friends.

Sehun back hugged Yoona.

Yoona: Sehun-ssi. Don't touch me.

Yoona turned to the back and pushed away Sehun.

Yoona: Bye.

When Yoona is walking back to the resort, her tears just flow from her eyes to her cheeks. Same as Sehun's.

Sehun: Why would she changed so much in just a second? 

Sehun used his fist to punch the beach.

Yoona in her room recalling memories. 

( Just now on the beach.

Suzy: Yoona-ssi.

Yoona: What do you want to say, Suzy-ssi?

Suzy: I knew you have heart disease.

Yoona: How do you know that?

Suzy: I have my own way to know that. 

Yoona: What do you want?

Suzy: Why are you so shameless to occupy Sehun oppa? 

Yoona: What's wrong to show my love