After all, Mick Rory is a guy with far more mental fortitude than he gets credit for; he managed to come back from his time as Chronos, AND he has regularly been the member of the team to come up with meaningful solutions to more complex problems.
This twist was insanely unbelievable, and by that, I mean I don’t believe it.
He’s not happy about where he is, and he may soon do something about it.
Beyond that, he is the one “member” of the Legion of Doom who doesn’t seem particularly happy to have the Spear of Destiny during the final moments of the episode.