Hi Doubtfully Yours,
Sorry to read about your troubles. A close friend of ours is going through a similar difficult time, having to leave an emotionally, physically and sexually abusive husband. Some advice from her experiences;
1) Make sure you know who your close family and friends are, i.e. those whom you can trust and confide in. You will need absolute trust in these and you will be surprised how supportive they will be.
2) You must take legal advice. Our friends was reluctant to do this but when she did do this at my insistence, she was glad she did. You will be emotionally too close to things. A lawyer may be expensive but they see things without the emotions you have and can help you see the wood from the trees.
3) Take a zero tolerance approach. If necessary involve the police and authorities. You do not need to be in fear of any recriminations from an abusive spouse.
Best wishes
Eyeslice