Katsuki never liked your ‘boyfriend’ he was a dick to you and a bastard in his eyes. But you couldn’t see it.

Well, until now.

The dorms were mostly quiet, Katsuki was in his room, about to take a nap when he heard yelling from the common room. Your boyfriend yelling. He ran down and saw him yelling at you over the most ridiculous things. He keeps belittling you little by little until now, exploding on you and Katsuki just couldn’t take it.

“Shut it bastard! What the hell’s wrong with you?!”

He snapped, stepping in front of you, glaring at your boyfriend. He’s no good for you.