“Trad Wife Finishing School,” the 3rd season of Sad Girl Syllabus, is all about the sad, waiting wife archetype in literature. For every hero who is off fighting for his country, there is a woman waiting for him to return. At least, that’s how it goes in the great epics and wartime novels and movies. Bethany and Mary begin the season by going all the way back to Ancient Greece and examining The Odyssey’s Penelope and Clytemnestra. While awaiting their husbands’ return from the Trojan War, one wife is faithful and one is not. The Girls get into it and explore questions about Ancient Greek religion, culture, and attitudes toward gender roles during times of war.