IN THIS WISE, ACCESSIBLE, AND LONG-AWAITED BOOK, celebrated research psychologist and couples counselor John Gottman plumbs the mysteries of love: Where does it come from? Why does some love last, and why does some fade? Gottman has spent decades observing the conversational patterns and biorhythms of thousands and thousands of couples in his famous “Love Lab.” Now he applies this research to fundamental questions about trust and betrayal. Doubts are common in relationships. Partners often worry. Can I trust my partner? Am I being betrayed? How do I know for sure? Based on laboratory findings, this book shows readers how to identify signs, behaviors, and attitudes that indicate betrayal—whether sexual or not—and provides strategies for repairing what may seem lost or broken. With a gift for translating complex scientific ideas into insightful and practical advice, Gottman explains how a couple can protect or recover their greatest gift—their love for one another.