While Cory deals with his anxieties about his impending marriage, Topanga's parents (real-life couple Annette O'Toole and Michael McKean) come for a visit and reveal some unexpected news: they are on the brink of separating. Meanwhile, Feeny pops the question to Dean Bolander (real-life husband and wife William Daniels and Bonnie Bartlett), and they agree to get married in the Matthews living-room; and a self-pitying Eric asks Shawn for advice on how to cope with losing Rachel to Jack.