There's this guy in my school that's a big jerk to me!! and I hate it!

Well last time he was really pissed off for no reason and I accedently bumped to him, I said i was sorry and he got pissed! and start calling me names, so the best thing to do was to walk away. Well he grabed my arm and twisted it, and I heard a popping noise, he had broken my arm, and it hurt like hell!!. Well after that event today on 1/28 I was about to leave out of school, and I see the same guy, well i walk past him and again I bump him on his shoulder and he get's super mad so I say basterd and you know what he did...he punched me straight in the JAW!! now it's bleeding and it hurt's really badly T__T