Wow. I'm so sorry you are going through this. But, you absolutely can't stay. He's your boyfriend, right (I'm awful with abbreviations). You seem like a very nice and caring person to want to take care of himself while he is recovering. But don't. He needs to see the consequences of his actions and the longer you wait the harder it will be because he will do whatever he can to manipulate you into staying. Is he a narcissit? I know that term gets thrown around loosely, but he sounds like he truly might be.

As far as your financial situation in moving out. Are you willing to find a roomate to help lower the cost of lving? Do you work? If so, can you secretly save money to get you ready to move? But, don't under any circumstances sleep with him again and cancel your credit card and get a new one.

I'm sorry you are dealing with this. He's a real jerk and you deserve more.