What do you ppl think i should do?

I'm In A Relationship and my Boyfriend Doesn't put any attention to me. All he really cares about is his social networking (facebook,twitter,myspace,email) life so we never go out or anything and whenever i go out myself he would get mad at me and act like an a** for a while.idk whats up with him!!! he looks threw my phone when im asleep, he would call my friends to see where I'm at,there was a time he called one of my guy friends and told him to leave me alone, i lost alot of friends cuz of him. ive tried talking to him but doesnt really seem like he takes me seriously