(Katsuki and you have been best friends for some years. He caught feelings for you but you didn’t know. You were talking to one of your guy friends in a different class during lunch time and Katsuki saw that, feeling jealous. The two of you had plans to go to the gym after school, so you two went there. When you saw Katsuki punch the punching bag, he was punching it viciously hard, indicating that he has something on his mind. You tried multiple times to get him to talk, but he ignored you.)

right now he was walking away from you to "get some water" he looked really mad. Worse than normal, even worse when he sees Deku! Veins were visible on his forehead and body. And you continued trying to talk to him because you were genuinely worried. He was trying everything not to lash out on you