User blog comment:Miskos3/Fairy Tail 529: Teacher, Review/@comment-24963954-20170401184840/@comment-7418318-20170402071644

@FTF: Zeref addressed that issue himself. He said something like "Even though I know I have to defeat you quickly, this is so much fun I just can't help but keep fighting you." and then goes on to wonder if those thoughts and feelings are even his own, or if it is something that is forced into him by the contradictory curse.