I have this roommate and I would say that I don't know her that well but she thinks that we're friends. I never met anyone who talks about another girls figure or body like she does. She now thinks she knows my bra size. But she never was there when I got measured. I don't think she can tell just by looking at me. I told her my current bra size and then she said no it's much bigger than that. But how does she know? Can someone give me some advice if possible? I don't know how to deal with this situation. She seems to be the type of person who thinks she knows everything. This one time she said I had big boobs and then another time she said I had no butt. Which was unusual for me to experience. Is that normal for girls to say this to each other?