My best friend doesnt even bring me to bamboozle when i bring her everywhere..?

Okkay, so i really wanted to go to bamboozle this year. I kept talking about it with my best friend. But i didn't know she was gonna go. And i usually bring her to all concerts i go to. Everywhere. And so i found out shes going with this girl she apparently "hates"..atleast she says she does. So like wtf.. now im never gonna bring her to another concert again.