I had a wonderful relationship for 10 years. Then my wife cheated; unable to forgive her, we split up. Been dating now for a couple of years. Recently, my latest girlfriend has been abusive, physically. She gets drunk, angry, she bites, punches, scratches, and breaks my stuff. I can fight back, and I have, but she’s no match for me and I must restrain myself so I won’t hurt her. She was physically abused as a child, and in a previous marriage. Law enforcement has been involved in our relationship. Advice?