When Twilight Sparkle starts to become a problem, Chrysalis doesn't send her to the catacombs. After all, what a waste it would be, to send a pony filled with platonic love away when she could use her as a puppet instead.
Seeing as Lightning Dust is now a reckless, self-centered pony who throws caution to the wind, Rarity wants to ask her what happened -- where the time went and why she changed. But she won't. Because Rarity knows what happened. Life happened.
