My ex was a bio woman. But she apparently didn't feel like a woman. But didn't want to be a man either.
She had short hair, wore mens clothes. But sometimes she would dress very womanly. It depended on her mood.
In hindsight I belive she was a butch lesbian and quite confused.
I couldn't use female pronouns. But neutral ones. But funnily enough when she felt masculine male pronouns were OK.
But when she dressed feminine she got upset if people said 'miss' to her 