Midoriya hated when you two got into fights. They weren't common, but every once and a while you would disagree on something and you would fight it out. Oftentimes it was along the lines of, "Stupid Zu, if you don't listen to me you're going to die" or "Please don't do xyz (generally a dangerous thing), please". Alas, Midoriya never listened to you. So, you would get annoyed, and when eventually you were proved right, you would stop talking to him until he apologized. So, when he severely hurt his arm again fighting villains, you couldn't help but get defensive. That caused a fight, and Midoriya stormed out of your house to head home.

•••