User blog comment:Miskos3/Fairy Tail Chapter 391: Gray vs. Silver, Review/@comment-24934658-20140704090653/@comment-2214433-20140704092606

You guys complain about it now? It was already shown in the previous chapter that he's quite crazy, and even if not, he is finally close to his goal after spending years learning Ice Devil Magic and what not, probably not caring about anything else but killing Gray and co., so losing his cool in such situation isn't all that random. However, I'd even argue that it's not really losing his cool per se, but rather an evilish excitement that he's been showing off.