My best friend keeps backstabbing me?

[Supermeggs12]

Let's call her Jenny. Everytime someone compliments me, she rolls her eyes and adds in a snarky comment. Even worse, we like the same guy. Although, he's already admitted to liking me back. Jenny was really mad when he did too, she said, "I'm positive he meant he only likes you as a friend!"

The next day, she was literally throwing herself at him. It was so gross. And I really don't want to compete for a boy with her, because he'll probably just get annoyed by both of us, and move on.

Overall, I just get a very Regina George like feel from her. She's fake. It hurts me because she knows I'd never do anything like this too her. I'm always proud of her achievements, and I never go after her crushes, even if I like them.
And please don't say, "Sisters before misters,". It's NOT just about a boy. She's done plenty of other mean things to me. Like, borrowing my lucky sweater without asking, or telling secrets. She's very disloyal to me.

We've been besties since diapers, it just seems like after fourth grade she just got mean. What do I do?

[Lost in the Echo]

Well, tell her how you feel about the way she's been treating you. Just be completely honest with her.

From what you posted, though, it seems like she doesn't feel the same way about you, as you do about her. Honestly, she sounds very selfish.

So yeah, like I said, just be honest with her, and give this friendship one last chance. But, if she doesn't change, it's best to find a new friend.

[Castle of Glass]

if she does that, is she really your best friend?

can't really help too much. only lived in the same place for no longer than 4 years ever, so don't have the same friends for too long :(

[ElectricStar21]

Be honest and tell her that you think she's being rude. If she agrees to change her attitude to renew your friendship with her, then all is well. If not, it's maybe time to bring in a new "bestie".

[MoonMan]

Selfish individuals like her rarely change, it's part of who they are. Maybe try telling her she's being a terrible friend and give her a chance to turn things around. Don't expect a miracle though, it would be much easier for her to stay selfish and drop you like hot coal than change her personality (which is probably what she'll decide to do once you tell her).