He didn’t know why he did, he had saved your life when you were only 9 years old, the Homunculi had attacked the small town where you had lived for your whole life up until then and you had been kicked out of your home for a week and had almost died he had found you and the second he looked into your sad eyes his cold black heart melted so he saved you and you severed him after that Envy as the incarnation of envy had only ever felt that, but something about you made him feel… different’