I agree with elvis. stop mentioning it as that kind of friendship is exhausting and draining. Or, next time you compliment her and she says you are just being kind, say yes, but i would still just say thank you if someone complimented me. Just be yourself and stop appointing yourself her helper. Be yourself and maybe your attitude and self confidence will rub off on her in time. You can also tell her straight out that her attitude hurts you and maybe she will stop before you get tired of it all and stop handing around her. Hey you could always use her words against her and when she conmiments you say, "oh, you're just being kind" i bet she catches on.
Mikala