Oh. That... oh. Now it's Will's turn to look flustered, because this is an incredible oversight. He and Rosinante have been casual with one another (close? friends?) for quite some time now, but it just never occurred to him to address the switch from formality to familiarity. Possibly because no one's ever really made that switch before.

And now he's not sure which thing he's more embarrassed about: not knowing how to deal with having friends, or forgetting to let the only one he has call him by his first name.

"Of course." He's aiming for something dismissive, but he misses the mark by a bit. He's caught off guard, there are too many surprises here. Someone bothered to ask first instead of presuming. Someone cared enough to ask. How is it that he's able to easily navigate a brief, physical encounter, but an actual personal connection completely throws him? At least, it does for a moment. And then, quite suddenly, it doesn't.

"Don't feel stupid, I probably should've said something before. My apologies." The words come without him even thinking about it. Uncharacteristic in several ways, that, but for some reason he isn't concerned. It just feels like the right thing to say. As if he, of all people, should know the right thing to say.

He wonders briefly if that fortune teller did something to him, too.