I just think they're really insecure about themselves sometimes. I know all the girls, but we all work a lot and don't have time to hang out together. They're all really nice; I've never had a problem with any model.
Modeling is a tough job, your co-workers are your rivals, it really puts a damper on your perspective of other girls.
My favorite designer is Christian Lacroix, not just because his clothes are amazing and I love them, but because he's so nice. When I did his fashion show, he was the first one to arrive there and he helped everyone.