The Gift Horse

2013 and still no job. Fail.
Is it totally and completely wrong to hate the gift horse?
There is a woman (always a woman) who believes that I am her only friend, her family hates her and I deserve stuff because of my 'Tragic Situation'.
It's true I have no money, and she is used to living large. So when she asks me to 'Go out for a little lunch', I would like Wendys, McDonalds, dollar menu junk. But no. She wants lobster and Olive Garden and Chilis. All the expensive stuff that I can't afford, so I eat from the bread basket. We go 'shopping', she wants Apricot Lane and Circa 2000, where a simple T is around $200-$300. Welcome to the Walmart- raised, baby!
So. In light of this, she is rich and simply MUST buy clothing and food and every other thing for me. I thought it was kind of her to buy me shampoo and body wash when I needed it. I thought it was slightly rude but thoughtful of her to buy me hair dye when the color started fading out. But then it progressed.
She started buying me shoes, shirts, jewelry, books, blankets, jackets. I am not ungrateful for these things, but I am uncomfortable with the fact that I can't really thank her properly. I can make her home-baked goods, but she doesn't want that. She wants $3.00 cupcakes and $40 cheesecake. She likes Victorian teas, so I offered a picnic where we could make our own wraps and bring wine and pie. Suddenly she wants it catered in a park you have to pay to get into.
This makes no sense to me- I don't know what I can offer her but friendship, and I've done my best.
I try to refuse the gifts, but she cries and asks why I don't like her anymore.
The Gift Horse stinks.