Why do girls get jealous of their friends?

My whole life I’ve had friends and people tell me I’m beautiful but then seemingly do things to put me down afterwards. Everytime I have a female friend I can always feel jealousy through actions towards me. Why can’t our friendship be based on the bond and not looks just because they feel inferior to my looks. I’m an insecure, quiet person and I show it so it’s not like I rub it in their face or attention seek
Why do girls get jealous of their friends?
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