Shirley P. Glass, PhD, whom the New York Times has called the "godmother of infidelity research," is the author of NOT "Just Friends": Protect Your Relationship from Infidelity and Heal the Trauma of Betrayal (The Free Press). Full of astonishing revelations, NOT "Just Friends" draws on more than two decades of original studies and hundreds of clinical cases to document the new crises of infidelity. Dr Glass died on October 8, 2003.