How do you know this woman is standoffish to you only because you are a woman and she only has male friends? What makes you think there is such a thing as balance and that people are supposed to have friends of both genders? I’m not trying to be argumentative, just posing the question.

Maybe a hetero woman only has male platonic friends. I think that is off and am not sure why that would be.

Personally I’ve had a mixture of friends and boyfriends before I married. I had a gay male close friend, I had/have female friends, I’ve had straight males that I tried to be just friends with, but they all tried to make it romantic. I’ve had straight males that I tried to make it romantic with, who only liked me as a friend too.