Why am I getting so jealous?

So I’m part of a friend group that my boyfriend is apart of (all guys). Anyways one of the guys introduced a new girl. She seems really sweet and all. I can’t help but realize that she is way funnier than me and more witty. She likes guy things and she dressed like an e girl. Everyone thinks she is really funny, including my boyfriend. My boyfriend is always asking when she will be online and all. I don’t know why I’m getting jealous. can you give me any advice?
Why am I getting so jealous?
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