Good people in good marriages are having affairs. More times than I can count, I have sat in my office and felt torn apart by the grief, rage, and remorse of the people I counsel as they try to cope with the repercussions of their infidelity or their partner's betrayal. In two-thirds of the couples I've treated in my clinical practice over the past twenty years, either the husband, the wife, or both were unfaithful. Broken promises and shattered expectations have become part of our cultural landscape, and more people who need help in dealing with them appear in my office every day.
Surprisingly, the infidelity that I'm...