LWB, Please get the book that I'm reading now "What to do when your spouse says, I don't love you anymore" by David Clarke. I got a used copy from Amazon.com. It is a real eye opener! While I wouldn't advocate all of his tough love approaches, it does make you feel better about yourself and that you are not the blame for his adulterous ways. It is an extension of LRT and not being a doormat.
Life's challenges are not supposed to paralyze you, they're supposed to help you discover who you are. -- Bernice Johnson Reagon