kaimyah
Kaimyah is a total beast who is sweet when you're nice but will rip your head off if you annoy her. She'll do anything to get what she wants and won't let you forget it.
She gave you a cookie but then yelled at you for eating it in class.
She told your crush you were fat, just because you said something mean about her.
She promised to help you with your homework if you didn't make fun of her for wearing pajamas to school.