It's notable that, for all Jack seemed immune to Adrian's charms a moment ago, this dream of a perfect world draws him in infinitely more effectively – and reluctantly. His expression softens, but it's brief and quickly hidden again behind his usual façade, which is, in itself, more telling than he means it. (Why hide something inconsequential?)

"The day mankind runs out of reasons to kill one another, I will be truly surprised," he quips, but kindly. "But you may find more support here than you think."

From him, perhaps.