It's tough when your caught up with an abusive partner and it can seem impossible to break free from, my only advice is bite the bullet and do it! if he is abusive and manipulative and you keep getting pulled back into a relationship you don't want to be in the only thing you can do is cut all ties as much as possible untill you are clear headed enough to be able to communicate with him without getting drawn back in. It sucks but we really do create our own reality and people treat us in a way we allow ourselves to be treated. get lots of counselling and good luck.