@chrisbeeson,
Chris,
You say 'past all the BS, she is one of the most beautiful people on earth' - but the BS is part of her makeup.
You say you stand up for yourself, and yet, despite the way she's treating you - you go and buy her a very expensive present.
You say you want to support her, but she won't let you.
It is my opinion that 'you are waiting your time going for a certain kind of relationhip' (in this case - the one with her) - one that will never work out.
My take on this isn't favourable. From what I can gather, she is just toying with your emotions, but you don't see it. You think she is beautiful (past all the BS) when to me she appears manipulating, controlling, and callous. It's often said that there is a lot of truth in 'treat them mean, keep them keen'.
Have you ever read 'The Art of Seduction' by Robert Greene?