This Just In… Never by Crash Froelich

After a fairy drank the poison left for her human boy, he pleaded for the children of the world to save her. Most kids ignored him. Some sneered. None wished her well. Those spiteful acts forever changed them.

The boy used the power of his eternal childhood to save the fairy who loved him. As a result, she ceased to be a fairy and he became that creature he most despised -- an adult. For years