Throughout the series, Sam has had casual female partners, usually one-dimensional or sexually very available, and sometimes takes them along in his red Chevrolet Corvette. However, in "Sam Turns the Other Cheek" (episode 49, 1984), Sam reveals that he avoids "married, underage, and comatose" women, so he does have some ethical standards. In "Teacher's Pet" (season 3, 1985), Sam earns his high school diploma despite an overall bad grade from the high school geography teacher, with whom he had a brief affair while he was her student. The episode "Sam's Women" (episode 2, 1982) reveals that Sam was married to his somewhat more sophisticated ex-wife, Debra (Donna McKechnie). (In some syndicated prints, Sam's past marriage is omitted, although it is mentioned again in the 5th-season episode, "Young Dr. Weinstein".) Notably, he has an on-and-off relationship with "a bright, attractive graduate student", Diane Chambers (Shelley Long). One time after Sam and Diane ended their on-and-off relationship, in "Rebound, Part One" (episode 45, 1984), Sam relapses into alcoholism and excessively womanizes. Diane finds this out from Coach, and involves her new love interest Frasier Crane (Kelsey Grammer) in helping Sam slowly regain his sobriety in the following episode, "Rebound, Part Two". In the three-part episode "Strange Bedfellows" (episodes 93–95, 1986), Sam dates an intelligent, attractive politician Janet Eldridge (Kate Mulgrew), who eventually ends the relationship because of Sam's visible feelings for Diane. Throughout the fifth season (1986–87), Sam cyclically proposes to Diane, but she rejects every proposal until, in "Chambers vs. Malone" (episode 108, 1987), Diane finally accepts his latest proposal. In "I Do, Adieu" (episode 121, 1987), Sam and Diane try to marry but call off the wedding to let her start a supposedly promising writing career.