Sam, I totally agree w/seeking answers. Lock the books up, password your computer and be sure to put your financial stuff in a safe place if she is going to be staying at your house. During a crisis, you can't trust your spouse to do the right things.
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.