Following the Changeling Invasion of Canterlot, Twilight's friends, Princess Celestia and Shining Armor lament over how they failed to protect Canterlot from the Changelings as well for their behavior towards Twilight at the Wedding Rehearsal.
With the Sibling Supreme Competition finally over, Spike and Twilight talk about how the day's events have changed their perceptions of the past, and how the revelations it brung will affect their future.
Spike and Twilight been best friends since kindergarten and always been there for each other, but when the boy spends the night at her place thing's become akward and start thinking if they should be more then best friends.