How come I'm not flirted with a lot?

I consider myself a pretty nice looking girl. Not above anyone else, but I like how I look and I don't normally complain about my appearance anymore (I used to in my early teen years). I also like my own personality, I think I'm fun to talk to even if I can be high energy and chatty. Though, I've never had too many guys interested in me or even want to flirt with me. I have a lot of girls confide in me that they've been flirted with or had guys ask them out a lot.

Just to throw in, I've had a LOT of people on dating sites like Tinder say I'm cute and talented, though I have no idea if it's just horniness talking or if they actually mean it.

What are some reasons that you guys DO flirt with girls? Am I not attractive to guys if I'm not flirted with?
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I'm not sure how to include an image or even if at this point I can? For reference, I'm 4'11 with pink hair.
How come I'm not flirted with a lot?
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