I might be the only one, but I can't help but feel that Fitz being broken is going to lead him towards a really dark path this season, kind of like him being the Ward of season 1. All the elements are there, and it was just the first episode. He's hallucinating, he feels like his team is against him, and has no faith in him. Shown by him consistently getting angry at them for not being patient with him. (Whether true or not that's how he feels, and that's what's important) Plus other than May who volunteered to help, him the rest of them are like ya we got more important things to do sorry man. Once he realizes Simons left him, for good reasons or not, he's really going to snap mentally I believe. Or worse yet if Ward gets redeemed, the man who almost got him, and his loved one killed, before Fitz comes around, to where he just sees Ward drinking beers with the group high fiving people, like nothing ever happened, there's going to be some serious hell to pay for the team. Even if that situation is slightly hyperboled but the team still accepts Ward (which we know they will eventually) I honestly feel Fitz is really going to loose it.
If I'm right, then Fitz could do a lot more damage than Ward ever could in season 1. Fitz is still one of the top inventors, probably only second to the PLOT protected characters like Tony Stark, or Hank Pym. I don't say Banner as he works in a different field of science. Sure Ward lied to his team, freed a bunch of dangerous criminals, put dangerous weapons in Hydra's hand, who almost overthrew Shield, but if you're going to top that a super smart inventor who's pissed off at the world, and more importantly his team is a hell of a way to do it. I wouldn't be surprised if Fitz becomes a major threat once he comes around more, and feels that his team more or less abandoned him.
Well that's just my 2c anyways.