i agree that i don't think it was in rp at first when she's talking about his sexuality. i think she just answered vaguely because she doesn't want to speak for someone else and idk maybe in that moment didn't know if foolish has ever explicitly stated his sexuality on stream.
maybe similar to how when janet was asked if foolish was gay she said she didn't know, but it feels more silly and weird to say coming from tina because (1) that's bestie and (2) she obviously does know. don't worry tina you're not outing him as a straight man if you answer honestly lol
i think she knows that he is publicly not gay tho lol, like i could maybe see this argument if she was asked "is foolish straight?", but she was asked "is he gay?" when i believe she knows his attraction to women is public knowledge (love or host for example).
like yeah i get not wanting to put anything out there that you dont know is 100% public, but im almost certain tina knows that him being into women is known information.