He couldn't know what was going on in Anakin's head in full, but he could put together that apology with his earlier memories of Anakin saying that everyone left and guess a little of it.

He leaned back in his seat a little and dragged his hand down over his face, tiredly.

"You don't have anything to be sorry for. There's -- you didn't do anything wrong, and you still haven't." Was he frustrated? Yes. That was the problem. "Obi-Wan couldn't express a feeling to save his life - or help a kid who needed to hear it, and I can't stop expressing them long enough to be a decent friend. I wish I thought I could."