<human>: Can you give me a shortened version of the text?

My boyfriend of two years has been occasionally physically/verbally abusive towards me for over a year now. Somehow I still find myself in this relationship. 

The abuse in the relationship definitely fits that "cycle of abuse" model where a period of stability in the relationship is followed by a build up of anger and then the abuse occurs. Afterwards he always apologizes profusely and promises to change.

I've been choked in front of people, my arms twisted and yanked, hit in the face... and verbally abused as well. The physical abuse hasn't happened for a while now but we fight about every day. He refuses to leave me alone when we fight or get away from me (for example if I tell him to get out of my car he'll flat out refuse). In these cases I have to play along and act like everything's all better and tell him I care about him for him to just leave me alone sooner. It makes me so so resentful and angry. 

And if you're not already thinking I'm crazy for staying with him, here's where my presence in the relationship here's where the waters get really murky.

I literally don't have any friends. I have my immediate family who I'm in constant contact with but that's it. Even then, me and my family aren't too too close. So I'm lonely most of the time. No one knows anything about what's going on in this relationship -- this is the first time I've ever spoken about it. I have no one to turn to because I don't feel ready to bring this up to anyone in my family. He's the only person in my life and the only one I have to talk to and go do things with. We've spoken almost everyday for about 2 years now... not talking with him for an extended period of time would just feel unnatural as fucked up as this whole thing is.

I guess I'm just at my breaking point and wondering if I'm actually crazy and should end the relationship. I want to know if anyone else has gone through this or if anyone can offer a perspective on the situation. I don't know where to seek help. I don't know where to start. Without him I would have no one.
<bot>: been in an abusive relationship for 2 years. no social support system. should i leave this relationship/seek help? he is my only friend and sometimes i do enjoy being around him.