As a MIAD (man in a dress), I can kind of relate, although I'm not offended at being referred to as a girl. I hate being called a sissy, though -- that's definitely not me. I love wearing a bra, dress, and panties, but I'm not trying to pass, and I don't want to become a woman. I'm a man and just like wearing feminine clothing, bras and dresses in particular.
Bob