Why are guys not attracted to me?

I get compliments from women all the time for being pretty/beautiful etc.

However I noticed that although I get stared at etc. guys don't really seem attracted to me, in terms of going out of their way to be around me, like me enough to make it obvious that they like me etc.

Why? It's making me feel like i'm not very pretty after all.

Why are guys not attracted to me?
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