Writer and marine biologist Susan Scott had an enviable existence--a home in Hawai'i, a prized 37-foot sailboat and exciting international adventures, all shared with her physician husband Craig in a marriage so intimate they called it the "Twinship." Yet, when her menopausal hormones raged and Craig grew preoccupied with Ironman triathlon training, this perfect life ended. Once blessed with well-being, love, humor, and sharing, the Twinship exploded with fights, silence, accusations, and failed counseling.

Shell-shocked, Susan sought solace in the one thing that always gave her...