100 Light Years Years from Home, or the one where the writers remembered the universe (and Joey) will always hate Jen
Let us never forget that Jen's plot for the very special 100th episode was catching a cold while not one, but TWO of her extremely recent exes stalked Joey all the way to Miami to try to win her heart. Oh, and having Joey slut shame her for sleeping with Dawson.
Meanwhile, Pacey gets stuck having to commit to a girl who seems to love throwing his past romantic failure in his face, while being gaslit by another who still can't admit that his insecurities about her feelings for him were ALWAYS valid and correct.
Only Pacey's return to "voice of the audience" as he tells Dawson he needs to just move on already manages to keep this from being unwatchable.