Why do they say confidence matters when you know girls don't like you?

Seriously, maybe I'm a health freak. I will not deviate my diet or exercising for nobody. Especially for some girl. Girls don't want to be with me, they want somebody they can get sick with eating ice cream watching flicks. Somebody that will sit down and eat that pizza with. Every time I meet a girl and they find out that I really care about my health and that I will not cheat my diet ever, I get dismissed. Even all my friends say it. I can be confident, doesn't change the fact that women want to be with some one that is considered normal in today's society.
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I mentioned I will not deviate from the plan, I exclaimed especially for women. Why would I? If I do then I'm changing my self. I want to be myself, and changing will just make me not like myself. I wouldn't be happy if I have to change who I am, and what I choose to eat is being myself!
Why do they say confidence matters when you know girls don't like you?
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