Girl said I'm the sweetest guy she knows..... Ugh, should I try not to be as sweet?

Anonymous
I mean I don't go out my way to wait on her hand and foot, but I do nice things for her always. I like to give her the best since she hasn't done me wrong personally. I just am a good very laid back person. I don't like being called the sweetest guy she knows though because I don't want her to take advantage of me. I don't want to get walked all over in other words. Should I maybe try to be less nice of a person, or should I just keep being myself?
Girl said I'm the sweetest guy she knows..... Ugh, should I try not to be as sweet?
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