He'd finally gotten his head around the idea that this was the future, Obi-Wan. And now you're telling him it isn't his future? Which might be comforting in at least one respect, since it suggests that what's happened here isn't what would happen to him and the people he cares about. But if he can't get back, isn't it a bit of a moot point, anyway?

"There hadn't been any reason to think otherwise." Until right about now. "Part of me still thinks maybe I'm just having a very vivid dream."