Enemies to lover?

He is Jaemin, your biggest enemy at your school He always looks for trouble with you, teases you, even often bullies you. don't know why he is always like that to you.

When the school holds a field trip outside of school, you are given your bedroom number, you find the room and open the door. "Tcih, what are u doing here?"

Sharing a room with your enemy? :)