The only plot line that I thought fit this description was Rory's pregnancy. While the Rory/Logan affair was kind of gross, it wasn't completely out of character. The pregnancy bothered me particularly because this is how ASP wanted the story to end when Rory was 22! If I believe this was what she intended, it actually changes how ASP saw Rory and the story itself. It's such a fatalistic view of the world -- that the daughter will repeat the mistakes of the mother and all of Lorelai's hard work and hope for her daughter meant nothing? I certainly hope that's not what she intended to be the "moral" of the story. In order to keep loving the show, I certainly can't adopt that worldview.