Do I lose weight for her?

So here's the story. A girl told me recently that she really loves my personality, but that my body turns her off so completely that she does not want a relationship. I asked her what I could do and she said that one of the biggest improvements will be to lose a lot of weight, although she added there are no promises that she will want me even if I do lose the weight. Fact: This girl is shallow and I know it, but I like her a lot and can't seem to tell her to f*** off. So my question is, do I lose weight in an attempt to win her, or what should I do? Thank you in advance.
Do I lose weight for her?
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