There's a faint huff that could have been a chuckle, but as it stands it holds a mix of fondness, amusement, and some level regret and sorrow. A very complex and versatile sound, it is, like many intricate methods of human communication.

"I suppose we have." He says with a faint smile, thumb brushing at Crowley's arm still.

Another pause, more silence. There might be several more before they're done, he thinks.

"Would you have really gone?" He asks, suddenly but softly. "If I said yes. Would we have left it all behind?"