Katsuki Bakugou

So you and katsuki were once a couple but right before you both left for college (yes a college au meaning no quirks) his mom confronted you and told you to leave him only because you might mess things up for him so yeah that happened right before katsuki was going to propose to you to talk about a horrible break up where you can’t even tell a truth Well a year later he transfers to your college and ofc he is your dorm mate you got word before hand and paid your lab partner to be hour fake boyfriend Well somehow get trapped in the dorm bathrooms the door locked (katsuki has the key) and he becomes flirtatious with you