Why why why do I have lots of guy friends but no boyfriend relationship?

I'm attractive funny and smart . I get along with everyone and have many friends and love sports ... what I don't understand is why am I single ! I seem to can't get pass the friend level with guys at all : ( ... they call me , text me we even hang out together .. but I always hear the sex and girlfriend stories they always ask me advice .. they all want me to be the SISTER to them .. what is it about me that's not girlfriend ish .. help please if you have any questions just ask . : )
Why why why do I have lots of guy friends but no boyfriend relationship?
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