User blog comment:Miskos3/Episode 272: Fairy Tail Zerø: The One Who Teaches Magic, Review/@comment-190.58.249.5-20160221003339/@comment-5303512-20160222000040

Beliefs and Feelings are two different things, one can believe in something while feel differently about it, it is not uncommon for people to have second thoughts or if they are uncommitted.

What does truth have to do with anything, it is about feelings, Fairy Tail only effects those that the caster absolutely feels like they are their enemies, Laxus can try and deny it all he wants, tries to perceive it any other way but his feelings will not change, in his heart, he feels that Fairy Tail is his family and truly cares about them, it doesn't matter what he says, thinks or believes, his magic revealed everything what he feels that deep down Laxus is a good guy but doesn't realize it.

If Natsu was that intent on killing Zeref, why didn't he kill him with the first strike of his Blaze Dragon King Mode? It was suppose to kill him but it didn't unless there is something more to it, I mean, why not have Igneel as a spirit kill Zeref since he was technically "killed" by Acnologia yet was still around and capable of fighting, although it was convenient that he didn't bite the dust though he should have. And I doubt that Natsu trying to kill Zeref was the best example to use since Natsu was a Demon specifically created to kill Zeref, though he didn't know it until around the end of their fight.

In fact this part is just a theory though, As the Demon END created from a human body, I think that he is unique compared to his demonic kin, that unlike them he was born with free will and unconsciously desired to not kill Zeref, I mean, why didn't he just use BDKM right off the bat if it was the only way to kill him, that Natsu unconsciously tried to prevent everyway possible just to make sure Zeref doesn't die or else he dies and deserves a right to live.