It sounds like she is trying to have her cake and eat it too- she doesn't know what she wants, but she wants to keep her options there in the hopes that she will be able to figure it out and still have someone to be with. This is unhealthy for everyone involved. A good saying I like (I'm paraphrasing here) is that if someone is really worth it they will make you a priority, not an option. It sounds like that's not happening here. Maybe it's just something for you to think about.