No surprise that the first thing Inoue does is heal Tsukishima. His powers don’t just simply tweak people’s emotions, he is intricately weaved into their past. The memories seem to be quite elaborate too and don’t contradict each other either. As Tsukishima explains it, he actually switches other people’s past for an alternate timeline, in which he was the one who helped save Rukia, defeat Aizen, etc. This time Ichigo is the odd one out, and his sudden violent behavior is very troubling towards his friends. Tsukishima wants to “fix” him, presumably by switching his past as well. Regardless, his reality-bending power is ridiculously over-powered, perhaps even topping Aizen’s complete hynopsis or Inoue’s rejection abilities, and it’s odd why he hadn’t shown up in earlier battles. It’s not clear what his ultimate goal is, but at the moment it could very well be that he’s simply a lonely guy that wants to make friends.
Ichigo always seems to end up being used for bigger conspiracies though, and I don’t think he’s getting out of this one without some help. He’s understandably very angry right now, but if he won’t attack his friends, then he’ll just have to get his ass kicked. Tsukishima certainly is screwing around with him psychologically and tormenting him, knowing that he can’t make the hard choices. Maybe Ichigo should just accept the alternate past and add Tsukshima as a friend; after all memory is a powerful thing, and although I don’t see it happening, it would be would be very interesting indeed if he does manage to switch Ichigo’s past. Or maybe Aizen will suddenly show up again and reveal that even the full-bring was actually his creation and everything was just as planned from the very beginning. Given the level of this guy’s powers though, Soul Society is probably involved (unless they are utterly incompetent). The Gotei 13 haven’t been seen in a while though, and we only know that Urahara, Isshin, and the other mystery character are planning something.