(Re-uploaded due to a technical glitch)

Everypony knows that after being possessed and turned into Nightmare Moon, Princess Luna was banished to the moon for a thousand year long imprisonment in order to protect Equestria. What they don't know is what she had to endure and suffer at the hooves of the dominant entity of Nightmare Moon.

A millennium trapped on the moon, unable to do anything but think and be tortured by the monster responsible for her predicament in the first place. How long would you be able to hold out before finally breaking? How long before stockholm syndrome finally sets in?