Fluttershy and Rarity are undoubtedly very close, but was Nightmare Moon's appearance the first time they'd spoken with each other? Perhaps there was more going on the day they got their cutiemarks than we know of.
Dusk Shine is completely fine with being a stallion. There’s no way he could be trans, so there must be some other way to fix this hole in his heart. Then he can finally be the pony his friends deserve.
As an ancient alicorn trapped inside a library, Princess Twilight spent many a century dreaming of being rescued from her prison. Now, finding herself in an entirely new Equestria, she realizes she'd never planned for somepony to actually succeed...
Twilight Sparkle regrets botching her romantic confession to Rarity. As a joke, Rarity proposes a simple and elegant solution: break up and try it again. She just wasn't prepared for Twilight to agree to it.