And that person is…
According to sources, Blaine, played by the very delicious Darren Criss, will have "an encounter with a pivotal member of the opposite gender [in an upcoming episode] … afterwards, he's forced to consider the possibility that he swings both ways."
Hmm, we're not sure how we feel about this. Blaine is written as a very confident gay teen who knows what he wants. Could this be confusing to viewers?