You see, long ago when Twilight was in highschool, Celestia didn’t feel like dealing with any colt friends like she did with Cadance. The amount of arrogance each stallion had about dating a princess still burned into her mind. So to prevent any stallion getting close to her precious Twilight, the innocent book nerd, and to herself, it was a necessary evil to tell her a white lie about getting with a stallion. 