You think that Derpy is a pony at all? You think with that much love she can be our kind? This muffin-loving Pegasus is actually Milkweed, a female changeling who feeds off fan's love of her...pony personality? After a tragic accident with the Mane 6, she realizes she does have a heart. She created this beloved background pony to blend in and to find a friend in this place and win love for the changelings so they can have love to share, and they won't have a reason to feed. Though, Milkweed asks herself, "Why are they eating cheese?" This is because they are eating what covers what used to be every one of her species' hearts. Though changelings can't die and the cheese will grow back instantly, this is bad.