Cheater Shocked to Learn Spouse Also Cheating

Savage Love Letter of the Dayby Dan Savage
Originally published November 14, 2014.
My wife has been reading a lot about open marriages and she recently decided that it was the best move for our marriage.
Quick background: we have been married for over ten years. During this time I have cheated on her numerous times. It started with online sex chats and running up hundreds of dollars on credit cards. She first found out about it by finding the charges. We had been married only 1 year at this poin