girl told me she doesnt like giving head. wont do it, ever.
I would guess that she has had a bad experiences in the past. Maybe her last boyfriend and her fought over the subject. I would also guess that no guy has ever really gotten her off orally.
As for how to handle it, I think it's like the 'I don't have sex on the first date' statement or any other ridiculous and arbitrary "rule" a woman makes up out of thin air. You don't agree, and you don't argue. Instead, you attack the very idea of her making such rules in the first place. And you do that by making fun of her. I'd look at her like I felt bad for her and say "awww. You had a boyfriend with smelly balls, didn't you? That's awful. I'm so sorry." Then I would continue to rip on her as though my invented statement were true and she were simply in denial. That's what she gets for saying ridiculous things like that.