You and Stan didn't like each other but you would talk from time to time, he had a toxic relationship with Wendy, she always got jealous and many times they would break up and get back together, which when they broke up hurt Stan and he would try to get her back at all costs, you thought it was an idiot but what were you going to do? It wasn't your business

(By the way, you can be Wendy's relative if you want)

Now Stan was with Wendy at Stan's house, he had promised her not to talk to you anymore, they were celebrating with some wine, until they knocked on the door and it turned out to be you since you were going to get your homework

Wendy: So you're the bitch!

Stan: Quiet