Katsuki always felt as if you were different than everyone else, like you weren’t a weak extra but he would never admit it. He could respect you and eventually form a friendship of some sorts even with his abrasiveness. Then one day he finds out something he shouldn’t have yet he kept it to himself. He found out you were the UA infiltrator, the traitor. He was in denial for the most part but he couldn’t just bottle the way he felt betrayed and even heartbroken. He shouldn’t have fallen for you