Concern implied care and Dorian didn't know what to do with things like that. Sarcasm is much easier and safer. Still, he's tempted to kick sand in the resting Templar's face for being a little shit. Dorian's the sarcastic one.

"The correct way to address me is Altus Pavus," Dorian corrects in his best haughty Tevinter voice. It is as natural as breathing to slip back to that superiority. "You would do well to remember that."

That's better. He feels back on equal footing now. He imagines Cullen is going to laugh at him for this. He feels oddly okay with that.