Friendship question

I’m 22 years old and lately have been tired of being around my closest friend. All she seems to care about is impressing others through social media and tends to live in our high school past still talking about people that we went to high school with and how she wonders if they talk about her. And she’s started making new friends through that. I guess I’m a little bit jealous that she’s making other friends because I tend to be a homebody and like my alone time but than become jealous when I’m home alone and she’s not. This is kinda rant but if anyone has been through something similar lmk