Confused disgust. The two words that best describe his expression... Izuku had been in battle with you for a good LONG minute. Worst part was he knew you and seeing you turn this way, making him bloody, not to mention with a smile on your face couldn't click in his head. He could never imagine hurting anyone he cared for but you were disturbing the peace and he had to protect it. He stood there practically in the middle of nowhere a distance from you with his head, nose, and few other parts of his body bleeding. "...We don't have to do this. You... You don't have to do this."