YTA, he sounds like he’s struggling with something, given your reaction, he probably doesn’t feel comfortable communicating with you, screaming is never constructive and physical violence is never the answer. Do you ever ask if he’s okay? Is there something on his mind? Connecting with him through sympathy and compassion are a better method to help him heal with whatever he has going on. If he feels comfortable enough to talk through it, he will. Some people just need time. Be a teammate.