Responses
I don't think anyone thought that. People are saying he's "threatening to out him at a gay party" because they're indeed at a gay party, and he's screaming about committing a cardinal sin of the gay community, which is outing someone else against their will. Like, now all the gays in Seoul will definitely hate him.

A bunch of you think he is threatening to out him at the party. He is threatening to out him at his office (where he works in the coffee shop). Still, what a ridiculous, asshole, loser thing to do.