When we slid into Pinkie's Party cave, some of us learned Pinkie's party plans. But when I got to read my dossier, in private, I learned something that might change the trajectory of my entire life.
Starlight Glimmer destroys Equestria when she learns how she actually lost her soulmate, Sunburst. Fixing her mistake, she learns time travel can lead to a revelation of the heart and the renovation of harmony. (An alt-ending to The Cutie Re-mark.)
Fear, guilt, and love can make you do strange unreasonable things. For once, I was able to be there for my adopted big sister, Rainbow Dash, as she worked through the stormy aftermath of the snowstorm of the century.