Why guys attracted to me more than girls?

Why guys attracted to me more than girls, I see guys like me and they look at me and my brother likes to talk with me and go out with me and play with me..., but girls see me normal, some of girls stare at me and my looks, some of girls like to talk with me and be friends and some of girls hate me with no reason (I am shy girl and quite)
Why guys attracted to me more than girls?
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