I have a lesbian friend who just isn't attracted to men. She didn't get hurt by one. Her family is awesome. She's really amazing, and cool. Basically an excellent individual. She's just never been into guys sexually. She's got male friends, and we all hang out and do shit together. I think it's chemical and hormonal, 90% of the time. There's also people who pretend to be lesbians for attention from guys. And there's bisexuals and that's chemical too. It's all about hormones. My friend was born the way she is. She'd probably laugh at you if you told her she made a choice to be gay, and she just needs to find a good guy. She'll tell you, as she already has told people, that she isn't attracted to men. It'd be like asking a straight guy why he won't give another man a chance. Just doesn't happen that way, and girls that "turn" lesbian probably had bisexual urges all of their lives and got tired of men. A decision made upon an emotional response, while the chemical and hormonal decisions had been made years ago.