Shawni

A person who cannot take accountability and blames everything on their mental illness. They can't hold friendships because they're insufferable. Even their family members are tired of them. They will lie about you to everyone behind your back, then act all nice to you in front of your face. They will backstab you, it's inevitable. If you ever encounter a ShawnKnee, don't worry - you'll end up forgetting them (they're quite forgettable).

She backstabbed me and lied about me to ruin my reputation because I didn't want to date her!

What did you expect? She’s Shawni.