Twilight has known the Doctor since she was little, but wasn't meant to be with this regeneration. This one is Ditzy's, and that's what keeps her moving on.
The Doctor is torn up over losing Derpy, until he finds a friend to help.
Pinkie was infatuated with Rarity since she was little, and connects with her over pretty colored rocks.

This fanfic was inspired by the conjoined songs Nothing Left to Say and Rocks.. I hope y'all enjoy!