there's this girl that constantly invites my other friends to go places with her. she lies to me and then posts all over social media as if she wants to hurt me. we're a pretty tight bunch but this girl is constantly leaving me out of things. because i'm being excluded my other friendships are suffering and im having more problems with my other friends who go with her. i'm really upset right now and i try to tell myself that its their loss but i honestly have a really good time hanging out with them. does anyone have any advice on what to do because i'm stuck but i'm also done with this girl who clearly doesn't care about my feelings. please help