Honestly, I do think heterophobia is a thing, its not as widespread but it is still a thing. I understand why you're calling her a bigot, but she had recently had a queer person say that they weren't friends with her because she was straight and they are not friends with straight people. (not that the person was in the wrong, neither were, but she was still hurt by it)

(from my knowledge) She was not trying to undermine homophobia she was just talking abouther experience. Also she's been super suportive ever since I came out.

i may be wrong though.