Season 5 really tries to gaslight you and act like Pacey/Joey didn't happen
Season 5 really does it's best to try and make you forget Pacey and Joey were ever a thing. It's like the show rebooted itself or something, or forget it's own continuity for a season. If you skipped seasons 3 and 4, and went from 2 to 5, you wouldn't know any different about Pacey and Joey's relationship, its actually crazy