I think your gut is telling you what to do, I am assuming you have had some discussions with her and have said you cannot live with this abuse, she sounds as if there are issues that need addressing professionally and some counselling is in order for her to get handle on her behavior,.If this isnt possible then you will have to move on, ask for fathers rights and do that through the courts, so you will still be able to see your child , I am sorry ,life isnt fair is it, I think you know what you have to do.. Good Luck