Iconic couples’ therapist and bestselling author of Mating in Captivity Esther Perel returns to paperback with a provocative look at relationships through the lens of infidelity.An affair: it can rob a couple of their relationship, their happiness, their very identity. And yet, this extremely common human experience is so poorly understood. What are we to make of this time-honored taboo—universally forbidden yet universally practiced? Why do people cheat—even those in happy m