The episode: “The Leech Woman,” ep. 802
The riff: Exclaimed by Tom after a scorned wife says “If you ever let me go again it will be the end of me,” and her husband replies “Don’t think of such things, just think of our being together.”
The explanation: Tom is playing off the title of a famous self-help book from 1986, entitled “Codependent No More.” Written by Melody Beattie, it focuses (obviously) on the topic of codependency, which typically manifests in one person being unhealthily fixated on the other person in a relationship to the detriment of their own wellbeing.
Novelty factor: I knew what codependency was, but I’ve never actually heard of the book before.