DEAR ABBY: My husband, “Bill,” and I have been happily married for 22 years and have two very active, beautiful children. Our oldest daughter has been playing on a traveling soccer team for the last five years. Bill and I go all over the country to watch her play and have become very close to the head coach, “Marla,” and her family. I recently learned through another parent that Bill dated Marla for three years prior to us getting married. This parent informed me the relationship between Bill and Marla was so serious they had discussed marriage. When I heard ...