You Screwed Over My Friend and That's Not Cool with Me

A character plots revenge on someone who screwed over their friend or significant other by pretending to succumb to their advances so they can drop them like they dropped their friend. It always backfires.

Seinfeld

Appearances

• Seinfeld: Season 4, episode 16, "The Shoes" (1993). Kramer runs into Gail Cunningham, a woman Jerry dated once who wouldn't give him so much as a handshake. At first, he ignores her, which enrages her. Then, he kisses her. He tells Jerry his plan is to pretend he likes her, then break her heart, but he ends up just dating her for real.
• Just Shoot Me!: Season 3, episode 6, "The Withholder" (1998). After Courtney starts sending Finch love notes, he takes her on a trip to Jamaica, where she ditches him to sleep with a tennis pro. When Elliot hears about it, he decides to "wine and dine' Courtney, and then dump her saying, "You screwed over my friend and that's not cool with me."
• 3rd Rock from the Sun: Season 6, episode 1, "Les Liaisons Dickgereuses" (2000). Mary's perfect sister, Renata, who loves doing things to piss off Mary, comes to Rutherford to open a museum, and she hits on Dick. Mary is ready to throw down, but Dick comes up with an elaborate plan to wine and dine Renata and then dump her, but when Renata asks him to marry her, he says yes and even says "I do" before Mary finally puts a stop to the farce.