"Oh, I see..." His words trailing off as Obi-Wan stroked his chin thoughtfully. So then Fives already knew. It's a relief and yet not at the same time. But the whole bit about different times is what causes the Jedi's brow to furrow slightly. That's certainly quite a thing there, and he has no reason to distrust what the trooper is saying. Despite being unable to sense dishonesty now.

Obi-Wan then nodded slowly in affirmation to the question. "Yes." And there's a pause, remembering what Anakin had said about Fives. "You were right, you know. If only we had listened."