Yeah I understand that Dawson would be upset that P/J kissed behind his back and Pacey did owe him an apology for that as he was Dawson's best friend, but by the time of 403 Dawson owed them both an apology right back. Season 4 aggravates me with how they make Dawson the wronged martyr as if he did nothing wrong, even when he tried to trap Joey into staying with him for the summer by threatening not to be friends with her, and he
almost killed Pacey in a stupid boat-race. It would have been nice if just once Dawson could say he was sorry too and admit he overracted, but even in the finale episode he's got angry eyes when Jack makes a joke about stealing Dawson's soulmate (or however it went, it's been a while since I watched that episode
) and everyone looks uncomfortable