User blog comment:FairyRaven/Fairy Tail Chapter 314: Erza vs. Kagura, Review and Commentary/@comment-5538523-20130111173915/@comment-5268982-20130111184553

Maybe this Lucy is being brainwashed by Zeref. Or then again maybe Zeref is using her body and is a very good actor. And, well, Mashima's purpose was to keep us looking forward to the next chapter, and he succeeded in that!