Princess Luna goes on a date with Twilight Sparkle, but something isn't right and Twilight isn't sure what's bothering the other mare. After all, hadn't everything been perfect?
Celestia has many titles and duties and there are always things that remind her of this. They could be ponies or objects, perhaps even something more abstract and symbolic. Today is one such reminder of one of her lesser known roles.
She is the breaker of absolutes, the mysterious princess of the night. Now she is locked away in the sky, where the moon and stars are what remains clearest to her, even though she cannot see them. After all, it's too dark.