You are such a good man. To be quite frank, your W does not deserve you. She may hit rock bottom some day and regret what she had with you or she may continue to blame all her life problems on you. That is not your concern. You dont want her to come back when she finds herself in a corner.
Your situation sucks, but I know it will get much better for you. I wish you the best in getting a fair deal in your D. You sound like a great father to me. Honesty is the way to go in life so as to maintain dignity for ones self.
BTW... Here is an update on the bike stealing doctor:
