His John Doe. Could it... really be? This isn't just some trick of this place? Konstantin continues to eye the being just as warily, not letting his eyes fall from the entity as he slowly, finally, moves forwards. All the way to a chair near the fire, which he eases himself carefully into, head still turned to face the pair curled up together.

Then it speaks to him directly and he's freshly startled. Konstantin is no stranger to the odd, certainly not he of all people — a reminder of it is right there with him, a nauseating wet coil as the creature stirs, agitated by the fluctuation in its host's emotions — but this truly is something new entirely. He stares over at this John Doe, drawing in slow, even breaths.

He's surprised to be thanked, and after a long moment he nods. "Ah— well, Arthur makes it easy to want to be a good friend in return." A faint smile. The man's done more for him than he can possibly thank him for. It's meant a lot, meant everything.

"I'm... sorry for being so surprised, but I— I didn't think you had a body." Is that an offensive thing to say?? He doesn't want to offend him!