The nostalgic smile is unbidden and unexpected. The war itself had, of course, been awful -- and all the things that went with it, and all the machinations behind it. But then there had been the people he'd met, the wonderful and courageous souls who had reminded him over and over again that there was still some things that were very good in the galaxy. An image of Boil and Waxer, a tiny Twi'lek girl clinging to plastoid armor calling them "brother" sprang to mind.

He certainly did live in the past sometimes, didn't he?

And, of course, the clones themselves are a complicated subject. Ezra had come here for some reason, which likely means that Rex he mentioned is the Rex that Obi-Want knew once upon a time. "All of our lives changed. He will understand, and I thank you for it."