Why would she refuse to accept my gifts?

I recently started a relationship with a beautiful woman, smart, outgoing and successful... In all our dates she asked me to share the check (I have no problem with that). Now, we have been together for about a year and ever since I can remember, she has refused to accept my gifts. Yesterday was the worse, she said she really "appreciated my intention but that she could not accepted", she said she was with me because she wanted to be with me and that she was not looking to get a boyfriend to get expensive gifts... she took it after a long beg to accept it but she asked me not to give her gifts... im sure she is not a gold digger because she has no needs.. is just hard to understand why would she refuse to accept my gifts?
Why would she refuse to accept my gifts?
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