Blair knew all along…
In 2003, when Blair and Todd said their goodbyes for what would turn out to be eight long years, Blair asked Todd to leave for the sake of the children. Crying as she did so, she told him:
I love you, Todd. Part of me I know always will. But I can’t breathe when I’m with you.
In 2011, the day after the premiere, Blair explained the “Two Todds” dilemma to her aunt Dorian. With Blair still clutching the photo of her second wedding to Todd, she and Dorian had the following exchange:
Dorian: What was your gut? What was your first reaction?
Blair: I couldn’t breathe. He sounded like Todd, he acted like Todd…
Even if she didn’t realize it, Blair had her answer right there. Between 2003 and 2011, that fact never changed.
(2003 good-bye scene between Blair and Todd)
(2011 scene where Todd reveals himself to his family)
I would like to think one of the writers were awesome enough that these parallels are deliberate but I doubt it. Still, it’s pretty amazing. The more things change…