Ok here's the thing what should i do?

Iv been with my boyfriend for 4 years i don't no what to do any more.He keeps putting his friend first.He will disappear for weeks with him then when he comes home he says to me its non of my business his friend his a real slime ball he try-ed to go with me a while back i told him were to go.I told my boyfriend he did nothing about it but when it comes to me having a friend he wont here tell of it he will call them names and makes sure they never came back.He doesn't like it if i go out he blames me for cheating and calls me names really bad names and runs me down so bad then i believe it.He tells me nobody would wont me because we have a child together and nobody would listen to me.I have threw him out and told him never to come back but he always dose after a week are so hes turned love in to hate