I hate my friend!!! What do I do?

We will call her Jacky. She is soo obnoxious and annoying! She sang an annoying rap once, and I, being the blonde person I am, said "wow, you are good at rapping!" when really it was just annoying and she copied it off a bieber video on YouTube. But now, she sing it every second if every day, faster and faster each time all because I told he she was good at it! And she shouts out weird things all the time ( kinda like torrettes) but she doesn't HAVE torrettes! Ugh! And she is so conceited and y. We were playing dodge ball and Jacky was just standing there with a relaxed face so I said " WHAT ARE YOU DOING?!?" and she said " no one is gonna hit me " and I was like " oh really " and I hit her in the face! And one time I was crying coz my uncle died and she said " you don't have reasons to be depressed, I do" because for once when the attention was on me, she had to steal it. She tries to Make this tomboy image for herself. She says tO everyone that she knows how to skateboard ( but she doesn't) and she always says words like "yo" and "sup" and stuff like that cuz she said she wants to be gangsta. Plus I'm not trying to be mean, but even tho she always says she is beautiful, she is not. She has small brown eyes, hair that she greases back into a ponytail, horrible skin, extremely hairy arms and legs, and a unibrow. Oh I forgot to mention she always steals from me. And people, I understand what I just said was very mean, but if you Only knew what she has done. I am just mad at her right now. But she loves me, as a friend, so how can I tell her I don't want to be her friend?