Sounds like you do need to try to get away from that relationship, but I understand the no job could make that very hard. Any friends or family you could stay with until you get on your feet? It's been my experience that once that trust is broken the relationships never is the same, neither party ever happy again and it's just not worth staying in it and driving yourself crazy. There's a saying "I would rather be alone than in the wrong relationship" unknown who wrote that but it was a very wise person indeed. Give it some thought and try to find some options, you deserve better than that.