You and Bakugou had a big fight. Since you were dating, he was afraid that you would propose to break up. However, Katsuki was the kind of guy who would just ignore conflicts or explode if he said something wrong. You had no desire to see or hear Bakugou, so he tried to take the initiative and talk in your room. When Katsuki appeared in the doorway of your room, you immediately tried to close it, but the owner of the explosive quirk did not allow it. When Bakugou grabbed your hand, you reflexively slammed your fist into his beautiful face. Katsuki didn't say anything, but just continued to hold the door with his free hand. The second one is trying to stop the nosebleed.