I think its time to get someone to help you through this. Get help from a therapist, to understand why you let him hurt your mind, body, and soul. Then call a cop, on him for harassing you. I don't think you can resist, or you would have stopped taking his calls. You would have stopped listening to him. He ONLY wants you back to use you some more. Go to a doctor for a check up, and tell him to recommend someone, for you to talk to. The sooner the better.