Havelock is too, but it's the warmth you get from standing in a warm room, no more.

His eyes flicker sideways just once, to catch the brightness of his eyes, before he turns around, back to the fire, cautiously watching the other vampire.

(Because - he opens up and relaxes with Puck; but he closes off when there is danger, it's safer and easier to think. Having him here is a comfort-- he can't be so cold as he might be alone.)