Emotional Abuse

Im a college student. I've been in an emotionally abusive relationship for about a year. 
I just walked away.
I don't really have friends to talk to about it because he separated me from my friends. 
He didn't like me having friends, and so stupidly I stopped.
So I'm posting this here because I'm looking for girl-to-girl help
I'm scared I'm going to go back to him so I need some help on how to not do that
I feel guilty and upset with myself for even getting into this situation
I guess I'm blaming myself
I just feel so sad and alone and I'm afraid the loneliness will lead me back to him..