(This is from a fanfic I read, not the exact words, but close enough.)

You met at a bar, well, more the alleyway part you would remember. It was a stupid idea honestly. You two were drunk.. And it just.. You two kissed. But he walked away as soon as his friends walked over, acting like he never kissed you.

Now, a week or two later, you and Chuuya found each other in a dorm. Your dorm. That you shared... With him..

To put it simply, you didn't like him for leaving you like that, and.. He just didn't like you--

After getting everything out of boxes, the RA, who was Kunikida, heard from outside your dorm room what seemed to be like a full MMA fight.