This story is a sequel to War of the Unfoals

Button didn't mean to ask Sweetie Bell on a date for his thirteenth birthday, but that's how it worked out.
Now, Button just wants to make it through the day without completely humiliating himself in fron of the filly he's had a crush on for literally as long as he can remember.

Sweetie knows she deliberately misconstrued Button's request, but honestly, if she hadn't, the idiot never would have gotten a clue. Now she just wants to have a nice time on the way to her fairytale ending.

Applebloom and Scootaloo know how this story ends. The Heroine gets the guy and then rides off into the sunset, leaving her friends behind, never to be thought of again. They ain't about to let that happen.

Nyx and Diamond Tiara know that their friends are being stupid. They also know that the one thing that might break up the trio is Applebloom and Scootaloo succeeding. So they'll need the help of the rest of the foals to foil the ones following the errant Crusaders.

Rarity knows how important this date is to her little sister; which is why she was determined to see it go well even before Applejack overheard Applebloom's planning session. Now she's bound and determined, come heat or high necklines this date will go well.
It. Is. On.

The first rumors around town worried the general populace. Confirmation of said rumors nearly panicked them. The daughter of that stallion and the son of that mare are finally dating.
Things can only go badly.
There have been runs on every hardware store in town as ponies buy what they need to barricade doors, seal windows, and batten down hatches. Ponyville just wants to survive the coming storm.

Her ten years of peace are almost up.
Ten years ago she'd retired when she discovered that the worst mistake of her life would actually have real consequences. She recently learned something though, so now she has exactly one shot at fixing it. Nursery Rhymes has thought long and hard, and made her decision.
No matter the cost, Button will no longer belong to her come sunset.

Thirteen years.
Thirteen years ago four earth pony mares had gone on their first adventure.
Thirteen years ago Nurtura Squad had stolen the foal he had intended to utilize for his rise to power.
Thirteen years ago he was banished into his own Mirror of Nightmares.
Thirteen years ago he was promised a soul.
Thirteen years were up.
It's time to collect.