[How does he gaslight gatekeep girlboss his way out of this if the gaslighting doesn't work?

He doesn't. He can't. So he does the next best thing, which is slide up to Otegine and reach up to put his hand over his his mouth.]

We're not going to ask anyone. Nobody else needs to know about what you saw, especially if they think they saw it, too. Okay? We are going to accept that it didn't happen, and you didn't see me acting like a fool. Do you understand?

[He's panicking a bit, but. It's fine. It's fine! There's nobody here who would take advantage of that side of himself, right? Everyone here is too... cowardly or too human.]