Homer meets Stradivarius Cain after he embarrasses Marge at a movie on The Simpsons. "The Spy Who Learned Me" is the 20th episode of the show's 23rd season.

The Simpsons Season 23 Episode 20 Quotes

Lenny: Trouble in paradise?
Homer: No, my marriage.

Homer: Now that's what I call a snappy retort.
Marge: Stop saying what you call things! I'm trying to watch the movie.