Hmmm...okay chapter. I think, although still not confirmed, the fact that Jeral is evil because he's supposedly being controlled/possessed by Zeref was an easy way out for the manga-ka to not really place the blame on Jeral and make him seem good in the end. That really didn't flow well with me, but I'll be able to deal with it. :)
I don't think we still know the identity of "that guy" he was talking about.