Me- rey choreographed that dance to narrate swaron story. Like how Sharon has always pushed swayam away and hurt him and stuff. After the dance she realises what rey is trying to say and hence looks upset (there's a shot in which she looks distressed and swayam is standing at the back and rey is between them looking back at Sharon)
Its a long shot but lets see ;)
When Sharon realises, she goes to swayams house and apologises and starts crying. And he cries with her.
What your theory? :)
2