I wrote a fic about Apple White having a mental spiral where she becomes convinced Raven is the next Snow White & she is the next Evil Queen, and that she must follow her destiny & poison Raven. It's Rapple and an exploration of Apple's self-worth issues, faith in destiny, black and white thinking, lesbianism, & internalised homophobia
Raven is just hopelessly in love with her seemingly straight roommate, trying to dodge the headmaster chucking a destiny at her, & doesn't know anything about the year-long crisis Apple is experiencing
It's called Rotten to the core