Kristin is 100% right...protect yourself financially, Dawn. The laws vary from state to state, but whatever it takes you need to shield yourself from his financial screw ups. Often you can file for 'legal separation' which in some states will make you financially separate. You should assume that you have only yourself to rely on now, and make sure you don't leave any financial opening for him. Even if he gets his act together and you decide to reconcile, you still need to protect yourself right now. I've seen it too many times....he (or she, as the case may be) runs up a lot of debt or messes with a checking account, and the innocent party ends up holding the bag. Get yourself a lawyer and find out what your rights are...ASAP!
"If you trust Google more than you trust your doctor than maybe it's time to switch doctors."