Bevendre

Changelings can feed on any emotion. It's just that Love is the most nourishing. Friendship is 'junk food'. Fear is tasty, but not very filling. Also, if a Changeling feeds on love that is being given to itself and not a disguise, that is the most nourishing of all. Enough of that, and their holes will fill in. That's WHY they have holes in the first place: all of them are in a state of near constant starvation.