Throughout history, unrequited love has inspired ballads, arias, poetry, drama, and literature. Almost always, however, the tale of the "star-crossed lovers" has been told from the point of view of the heartbroken pursuer. This illuminating new work explores unrequited love from both sidesBlending scientific research with vivid narrative, the book utilizes current psychological theories about relationships, interdependence, attachment, and communication to provide careful analysis of the sometimes amusing and often heart-rending stories people tell from their love lives. Demolishing pat theories about human fulfillment coming from loving or being loved, this valuable counterweight to traditional studies explores the other, darker side of love to show that it is the mutuality of affection that is crucial to happiness.