Do I have too high standards?

I receive attention from girls I don't like, in the past week, I have rejected 2 girls who confessed and fall for me (not trying to be pretentious) . I don't consider them attractive, that makes me wonder if I'm not that attractive because girls I like almost always doesn't like me back. Maybe my behavior is different with them? Should I be lowering my standards?
Do I have too high standards?
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