Book excerpt: No matter how committed two people are to being together, why can't they get away from feeling something is missing? In this important and transformative guide, three experienced practitioners identify the widespread dysfunctional dynamic they call "irrelationship," a psychological defense system two people create together to protect themselves from the fear and anxiety of real intimacy in a relationship. Drawing on their wide clinical and life experience, the authors examine behavioral "song-and-dance routines" repeatedly performed by couples affected by irrelationship. Readers will find a valuable framework for understanding their challenges with action-oriented tools to help them navigate their way to fulfilling relationships. Mark B. Borg, Jr., PhD, is a community psychologist and psychoanalyst, and a supervisor of psychotherapy at the William Alanson White Institute. Grant H. Brenner, MD, is a board-certified psychiatrist in private practice, specializing in treating mood and anxiety disorders and the complex problems that may arise in adulthood from childhood trauma and loss. Daniel Berry, RN, MHA, has practiced as a Registered Nurse in New York City since 1987 and has worked for almost two decades in community-based programs.