The grass isn't greener on the other side -- it's greener where you water it. That's a hard lesson for some of us to learn, both the faithful and the unfaithful spouses. Affairs are an eye opening experience and cause us to re-examine our whole relationship. We often get complacent in relationships and start taking things for granted. It takes a lot of humility to accept responsibility for a breakdown in a marriage while dealing with the emotions of the affair but it shows you're capable of growth and change.