does. Charles. know. that pointy boy loves him with all his disgruntled little pangolin heart.

Chaz is indeed aware of this very important fact, though of course neither one of them put that sort of thing into words. Partly because doing so makes things a little too real and a little too – vulnerable – which is not an emotion either one of them enjoys enduring for any reason. And partly because neither one of them fully knows how the other will react to such a fact being granted a vocal platform. 

But he does know and he does grant Jack liberties that no other man  (  or human in general – or pangolin, in fact  ) has access to. Like calling him Chaz for one thing, to the point that it is the only nickname he accepts, though you have to be a Rackham level friend to unlock the right to it and thus far Rackham is the only one on that level and so here we are.