Boyfriend problem....help?

me and my man have been together 5 months. we live together. idk what to do. ive caught him looking at the personals on craigslist for women, he tld me he only did it because i pissed him off and he was doing it to get me back. later he told me he was actually looking. hes gotten so mad hes shook me hold me down by my throat and tell me how women dont talk back to men. he gets mad because i dont have a job but have been looking. he doesnt have a job either but he hasnt went to get applications in over 2 months. i moved back home 3 weeks ago but my mom kicked me out so i moved back in with him. on 1/31/11 it says he was on personals again. he changed the password on his laptop so i cant get on it. idk if hes hiding something. i mean i do love him and all.....but none of my friends have been through this so i need help...BAD.