Sorry if someone's mentioned this already, but does anyone think there's a chance that Fitz' split/dual personality is a result of being merged with evil framework Fitz? As in, framework Fitz had something setup so at least part of his consciousness was transferred over and the 2 personalities are battling for control? It's probably too easy of a resolution to the issue but I can't help hoping for some "good news" for Fitz.
I mean this is basically what I thought. HydraFitz has a very distinct personality and "look" and he seems to be channeling that.