Serpent? What an odd sort of endearment for a loved one. It takes a moment for that to register, and then he frowns, looking somewhat baffled by it. "Is... that an in-joke?"

If he were more sober he might flinch at the term abandon being thrown his way, but as it is, he can appreciate the refusal to walk off and leave him to his own devices. He's had more than enough time on his own lately, probably. That frown turns into a grateful, friendly grin to Crowley, and a matching pat to the shoulder in thanks.

It shouldn't surprise him that these two have centuries of internal references that no one else will get, and it doesn't. It does make him wish for the days where he'd had friends he could do the same with, though. "Oh, I love honey cakes. We used to have them in Asgard. Well not exactly like these, but cakes with honey, anyway." Can he substitute that uncomfortable void with food? Signs inconclusive, more testing required. There are probably plates in plain sight, but Thor just grabs one of the little pastries without bothering.