Awww, Anna. I am totally with you on this one. They are actually two episodes that never fail to make me cry
To Green, With Love and
You Had Me at Goodbye (amongst others).
YHMAG has so many wonderful happy scenes. It's a real classic DC episode of special friendship. The Jack/Jen make up scene, Andie's speech (with Joey, Jen and Andie all crying), Pacey/Joey make up scene and mostly my favourite - the end scene where they take the picture and Andie goes to stand with Jack and leaves Dawson and Pacey with their arms around each other. I don't even love the Dawson/Pacey friendship but the little smile on Pacey's face just makes me melt. He is so happy at that moment. And Joey too, to look beside her and see Pacey and Dawson back to how they were (even for just a moment) is just so moving.
I'm so glad you are enjoying Season 4 so far. Enjoy these moments. Your little heart will be breaking towards the end.