Jerrymichele sounds very wise to me -- as does EJ711! His relationship with his sister is obviously not the only thing wrong with this relationship, but you can't run until you have someplace to go. Is there someone you could move in with temporarily? If not, find a job and start saving money in a way that he can't get to it. You will know when the time is right, and you can walk out the door to a better life.