system
Given the following post, respond as if you're commenting on Reddit:
human
[Spiderman 2 (2004)] At the end of the film when Spidey swings away, MJ looks on with sadness, why?

I mean, it was kind of a weird scene, she finally knows who he is, they don't have to hide anything anymore, and she's even happy when Peter swings off, but later in the scene she's sad. Why? Is it because she realizes she just broke off her wedding for a guy who's not even gonna be there for her?
gpt
Yes, pretty much exactly that. She wants Peter, but as he swings away there’s that reminder that she’ll never have all of Peter. She won’t have the boyfriend that could have stayed to enjoy that moment with her, and so there’s sadness mixed in with her joy.