I'm sending you positive thoughts today. I'm sorry you are having a difficult time of it. Let me just say this...you can't compete w/the ow. How could you? You are his wife, lover, and friend. You were w/him a long time and you love him to pieces. Those ow don't have anything on you. They are just crutches to his crisis and are very shallow and all they want is to have a good time and yes, help spend his money. They don't know him like you do. You are way above them in class and dignity, so please, don't even try to compete. You are the prize! Never forget that!
I think it's wise to separate accounts if he's out there spending above his means. I know you hate to do this, but you have to protect your credit and have money to pay your bills. He needs to learn what accountability and responsibility are all about and one way to do that is for him to pay his own bills.
You can be the lighthouse to him in the storm, but that doesn't mean you need to be a door mat either.
Amy, you can do this. You are stronger than you think!
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.