Adjusterjack has nailed it. GET. OUT. While you still can. You have family and friends that are aware of the situation, and are likely willing to help. If not, try here;

http://www.futureswithoutviolence.or...ents/get-help/

Staying will get you nothing but dead, or seriously injured. It will cost you to get out, but sometimes consequences are just part of the decisions ones makes.

Pack what you can, and leave. Make sure you involve Law Enforcement, before he does. Don't threaten, don't confront. Get Out.