-The end of the episode "Billy". They're not together then but the scene where Fred goes to Wes to tell him that she doesn't blame him for what happened and his obvious tremendous guilt... aw Wes, break my heart.
-Fred trying to, discreetly, tell Wes that she's seeing him in a new light and he's entirely oblivious
-The scene where Fred starts singing to Wes and it all goes horribly awry with blood spitting convulsions and he catches her as she falls (I mean, it's horrible, it is, but that scene just always gets to me. I flinch every time and my mind just goes "noooooo...")
- "Why can't I stay?" (Sobs like a baby)
(I think it's a deleted scene, I can't remember, I just remember it very clearly. But the part in "Waiting in the wings" where Wesley daydreams himself and Fred into the ballet Giselle. It's hilarious and kind of beautiful)