Bruce could be a cuddler, would be a cuddler, but he's out of the habit and still not sure what the boundaries and expectations are for whatever this thing is he's doing with Tony. A little space is almost definitely a good idea.

"The last time I tried to save us from ourselves it didn't go so well." He snorts, though, at mention of Loki. "You probably don't want to hear about how he's currently in his brother's good graces. King Thor, of the planet formerly known as Asgard, currently known as space debris."