Ditto Ianiferous.. This person is holding you at arms length. Be polite, be cordial, be friendly, but don't count on her for anything except drama. I don't mean that she's super dramatic - how could I know - but her way of controlling her environment is to keep certain people in certain circles that only make sense to her. This could be due to immaturity, insecurity or it could be a ton of different things. Just don't invest emotionally in her, you'll only regret it.
You arent friends, Id say. Empty words on her part.