John, Everyone struggles...that is why you come here for advise and to bounce your thoughts off of others who have been where you are at...otherwise you will continue to make the same mistakes.
Have you identified the OM? Is you wife still saying she made it up? If so, do you believe her? Why?
Lawyer? Do not discuss this with your W. Bills beign paid and hopefully ahead a few months with some savings? Those kind of things...