Twilight is betrayed by her friends after they leave her, saying that Starlight was too much of a villain to be their friend. When Twilight's personality changed for the worst, Starlight takes the brunt of it after Spike runs away in fear.
When Princess Celestia, Princess Luna and Princess Cadance finds out about the betrayal, they confront the Mane 5 to get them to understand why Twilight is the way she is and why she is hurting Starlight.
Can Twilight be healed emotionally?
(Currently on Hiatus)
More?
There so many things wrong with this fic's characterization and the pacing I don't even know where to begin. The writer part of me weeps. Seriously, you could have replaced the "Mane Six" with OCs and this wouldn't have been any different. They're that far off the mark.
It hurts to say this but she's not wrong
8805832
Actually, she is wrong.
I feel like twilight isn’t as sorry as she should be. Also, me and rarity would have to fight.
That’s cap