Ugh! Poor sensei! She got a 10 year unrequited love, fwb(though she agreed with it, we sometimes decide on stupid decisions and it's hard to break free from it). So now she will be facing a false rumor that she's dating a male co-teacher.
It’s common to be “dense” but comphet aside I imagine with the first love and such she’s been gay for a while to where one would unintentionally blow off a man flirting with them
Tho, even if she doesn’t “out” herself I’m surprised she wouldn’t imply that she also had someone in her life as well to where he’d also understand and give up even if it’s more complicated on her end
I guess it’s common for teens to be noisy tho I guess telling someone in high school that ur still hung up on a “first love”‘might lead to more teasing/prying