User blog comment:IamJakuhoRaikoben/Chapter 424: Avatar, Review./@comment-85.229.47.162-20150316112409/@comment-7418318-20150317161349

This is the best possible moment to complain.

As Sane said it'd be OOC for Juvia to suddenly change her behaviour from one day to the other without some significant and unusual event to trigger it.

And that's exactly what we had. First the matter with Silver followed immediately by a one-year timeskip. Each of those two by itself would have been good points for a change of her behaviour, but combine them together and it's practically made for it. There never was and likely never will be any more perfect moment for her to change than this significant event followed by a year absence to make the changes sink in and stick.

But unfortunately Mashima didn't use it and left Juvia just the way she was.