he hit me..

Yesterday I was at my "boyfriends" dorm and we got into a disagreement honestly I've been feeling super detached from him lately he hasn't made me feel good in the relationship ( we were  going on two years)  so I told him this and said I wanted to leave and that we should break up.. that ended with the cops and ambulance... he litterally bit me and pushed my head against the wall used his body to choke me, threaten to kill me, I even broke some nails to the point of bleeding.. so now we're broken up & haven't spoke since. my mom wants me to press chargers ( her and the cops both) but the way his school is set up they want to label it more as an act against females meaning he could get kicked out of school and it's his first year I swear I'm not trying to defend or make excuses for him  but I don't want to ruin his life either I just want nothing to do with him I don't want to drive back up there and deal with this  again & truth be told the school is gonna deal with him on there own because of the type of situation it is and is rather let faith take place and let them handle it ... but today I woke up really sore and my head hurts I just don't know how to feel or what to do... Advice?