Sometimes girls get intimidated and don't know what to do about the situation, so they sorta avoid the subject. Or, at least I do sometimes. I don't do it with the intention of being mean, but sometimes when a guy I know shows interest in me, and I have no interest in him at all... it kind of makes me feel awkward.
But..... I'm a very awkward person in general. So... you can just ignore all that. haha