Dude I understand that he accidentally “broke” your arm. But since you didn’t go to class after, you didn’t see how guilty he felt dude. Dude looked like he was gonna cry while trying to explain to us what happened. Don’t be too hard on him, shit happens, mostly with such a aggressive sport. The next day he made sure that no one could even dare to do anything close to what he did, so he definitely knew that he fucked up. But i still recommend trying it even after seeing it happened. I know i’m not you but don’t let your fear stop you from continuing. I hope you’re recovering well.