You didn't answer my question. Do you feel that trans people can genuinely exist? If not, then there is no point having this discussion as we are unlikely to find agreement.You don’t have to know someone to know they can’t change sex and that if you are not happy with the sex you are born to the point that you want surgery and hormone treatment, you have some sort of mental health issue or disorder going on.
She wasn’t attracted to males because she’s a les. She’s a female attracted to other females. She is not a heterosexual male.
From what you are saying I’ve no doubt she *feels* her situation is genuine, but that doesn’t make it factually true.