User blog comment:IamJakuhoRaikoben/Chapter 503: The Last Sight Seen, Review./@comment-5303512-20160926122525/@comment-5303512-20160926131326

There is a difference between devotion to one's creator and driven by pure rage. And from what has been shown, he has insane hatred in his eyes. He could really not care about Lucy or Gray or anyone at this point, just to kill Zeref.