I was stunned when my wife asked me for a divorce. It's not like I hadn't cheated on her before. Every time she caught me, I would apologize and promise to never do it again. Then, she would forgive me, and everything would be fine until the next time she caught me. Why divorce now? I cheat; she forgives. I mean, how is that not a perfect marriage? I will admit, sleeping with her sister made this time different. It's not...