Perhaps it would be more in line for him to feel angry about this. And yet he doesn't. Maybe it's simply that he understands that York has a past, has people he felt a certain way towards, and him acting on those feelings was who he was. Not an attempt to hurt Locus, but to set some of those ghosts to rest.

Perhaps he understood more than a little exactly how quickly Agent Washington got under your skin, despite your best efforts to keep him out. The man didn't even have to try. It was...unnerving at times.

"How did he react?"

Still no trace of anger. Not much of anything to be read on his face, save curiosity.