Me and my best friend used to be all ways best friends with my friend and now i feel like the 3rd wheel?

Well Me and my best friend were all ways best friends untill 5th grade a girl took her away from me and i all ways felt like crying because in 4th grade we would do every thing together!!!!! And now im in 6th at the high school and she hanged out with a nother girl and now im hanging out with her again and were best friends for about a mounth and today at school she gave her to old friends BEST FRIEND NECLECES and i feel lie crying HELP!!!!!!!!!!!