Plot: When Dharma's charismatic old boyfriend, Leonard, suddenly re-enters her life after a year in India, Greg finds himself extremely uncomfortable around him—especially when it becomes clear that absolutely everyone else, from Greg's parents to even Marlene, absolutely adores Leonard. Weakened by battling a bad cold, Greg is thrown for a loop when Leonard reveals that he has been celibate since he left Dharma and Dharma decides that she and Greg should give abstinence a try as well