My ex is trying to steal my friends?

Hey peeps, my ex has been inviting my friends to go out with her and her friends and I am being left out. I know I'm being childish and insecure but I'm really worried my friends will start comparing me to her and they will end up liking her more than me and I would end up with no friends. What should I do in this case, I really need your help. Thank you !
My ex is trying to steal my friends?
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