I hate my best friend!

Hi. I hate my best friend! Okay, I got to the point. . This is how it strted out. So we met in the fourth grade and had been friends ever since. She was the new girl, and I was always a little shy but she, HUH no way. I wanted to talk to her, but I didn't. So she always went with other people. Then I started to realize something interesting. She keeps ditching people! She ditched about 10 people and made 5 people go to the conseulers office 4 times in one month.. Her sweet face lied~! So I kinda wanted to get in there and change her. She couldn't keep doing this to people! So eventually we became friends. And then we had our first playdate. I was an idiot and forgot all about trying to change her. So the last day of school she ditched me. She ditched me a lot so I wasn't surprised but she ditched me on the day before my birthday and she knew that. So as time went on she keeps ditching people. She is always saying "Move it jerks the queen is coming through" to kids in the hall and other people. She is always yelling at people. She has always been a spoiled brat. This is what I hear ten times a day "I am the queen. I am so amazing. These people always get in my way." but worse. My family doesn't have as much money as her family, so she is always bragging about everything. She yells at my crush all the time so I think he hates me now. :( She doesn't even know he is my crush. I feel like she is, well I don't know anymore. . . . . . I want to know if this is normal or not but I also want to know WHAT TO DO!!! I try to tell her to stop but she doesn't listen. PLEASE HELP I AM LIVING A NIGHTMARE SHE IS MUCH WORSE THEN WHAT I DESCRIBED HER AS HELP PLEASE!!!!