The Devolution of Cedric Diggory (AKA:How a Hufflepuff Became Popular)

So for the first time in his, thus far, meaningless life; Cedric Diggory aspired to do something more than the bare minimum. All because of Harry Potter. Perhaps this was the incentive the Sorting Hat had been talking about. And so began his evolution. Contains: OOC(Darkish?)!Cedric, Obsessive!Cedric, MentallyUnstable!Cedric, Uncool!Cedric and Oblivious!Harry