This document discusses understanding infidelity in relationships. It begins by outlining some key topics that will be covered, including understanding affairs, why spouses cheat, how affairs happen, recovery from affairs, and safeguarding marriages. It then discusses what constitutes an affair and some common myths about them. It explores reasons people may be tempted to cheat and the typical stages an affair progresses through. The document provides advice for both spouses who have been cheated on and those who have done the cheating on how to try to recover and move forward. It ends by offering some strategies for safeguarding marriages to help prevent infidelity.