He stops in the act of patching Clint up when he essentially says he's been keeping SHIELD off Bruce's tail. His eyes flick up, a smile and a cautious thank you in them, even if his face is grim because he's still questioning, still unsure. The sad thing is, no matter how much Bruce wants to trust Clint, he's back in this world now where it's far more dangerous to trust than it was in Akrham. In Arkham he'd had a support system, and that had been good, up to a point, up until he systematically lost them. That was the danger of letting people in there; here, he could let people in, but they're far more likely to turn against him of their own volition. That one hurts worse.

So when Clint asks him, and Bruce's eyes light up for a second, he quickly clamps down on that hope. He draws away from Clint, physically pulling in on himself, his position defensive and poised to run or attack because he doesn't trust this. Is this a ploy from SHIELD? Did they figure it out? Are they trying to pull him in for psych evals? He doesn't want to be evaluated on this.

"What do you know about Arkham?" he counters, caution and suspicion in his eyes.

The world isn't nice enough to give him Clint. It just isn't.