You asked what you should do...only you can decide that. My concern is that he is racking up credit debt. Is the credit card in both names? If so, you may end up having to pay some of this debt once you are back on your feet, especially when the savings runs out.
I suggest that you think about taking out half of the savings and put it in a safe place before it is all gone. You are entitled to half of it. It's too late when it's gone and you can't get it back from him.
Just my two cents.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
