I need realy answers!!! plz help?

ok so me and my best friend have been friends since kindergarten and all the way till 6th grade now im in 7th well now 8th and i am a country girl and shes holster kinda girl. and i switched schools in 6th and she got other friends and now there very very close! i made a few friends but nobody super close. i don't have a problem with her having other friends. But she wont invite me over any more she wont ask me to do things i have Always been there for her even when her parents were going through bad times... and she never seems to want to be a my friend! Like for an ex sample we were in the mall one time, and i had on boots and i t-shirt. She had on a all her fancy clothes and was all dressed up to see a movie! and we walked down there and one of her friends was down there. I started to go get popcorn for us and she stopped me and said "i don't want you around them" i was like" why not". then she got all mad and started say how i embarrass her and that we need to leave i was like whatever! i haveAlwayss been a good friend and nice to everyone. because everybody needs a chane! but i have never been able to have that one friend that everyone else has! is there something wrong with me? im a country girl and is there something wrong withthatt? so my Q is did i do somethingWrong or am i just weired!