Conversation so far:
what is the truth between blair and dan
While things were strictly platonic between Blair and Dan in The End of the Affair?, Chuck and Louis are onto something.
What is the twist in Gossip Girl?
The titular Gossip Girl is later ultimately revealed in the television series finale to be Dan Humphrey.

Question: who is blair in the show
Self-contained rewrite: Who is Blair Waldorf on Gossip Girl?