Bruce slides his hands into his pockets, though he's ready to grab Steve to support him if he needs help, though just feeling that way is unsettling. If something's rattling around in Steve's blood and throwing him off base, then Bruce is pretty worried, yeah, though it wouldn't surprise him anymore, not after some of the things he's seen.

"Hunting? Where were you, though? Were you here?" The last time Steve disappeared, he came back without any of his memories, though he'd turned up like other new arrivals did. He's suspecting that this Steve is the last Steve, but who knows?