Fluttershy wanted to see an extinct flower, so she makes a deal with Dr. Whooves to take her the past so she can see them. Once there she meets a young Discord and befriends him. Fluttershy altered the past and she changed the future into a dark one.

Discord's only friend is Fluttershy not only is she his friend, but he's also in love with her. He tries to get on the good side of her friends, but he gets rejected. Queen Chrysalis uses Discord's situation to her advantage to find food for her changelings.
[ I don't really know how to explain this well. XP ]
[[Cover photo by Hungryman.]]