There's outrage in his expression, of course, but - a grim sort of fascination, too. He can barely even imagine living like that, or dealing with it on a regular basis.

But isn't that what he wants, in the end? For all of them to just fucking stop, and choose to live on this world that they made together? If he's just angry, then he isn't learning anything. He isn't understanding anything.

That's not what the oath he took.

"...Then you learn more about what he chooses to be honest about and what he doesn't." His lips purse; it isn't quite a grimace, but only through force of will. "I can. See how that choice could be a gesture of respect, in his eyes."

It's certainly paining him, but I must admit, it's more of a concession than I expected. Of course, whether Asmodeus considers concession a sign of intelligence or weakness depends on a lot of factors.