Jokes on purpose, and very occasionally, one ends up funny. Now is not supposed to be terribly humorous, but behaving in a way that few people see, still feeling comfortable enough to do it, takes steps to thaw out the wall of ice he's slipped behind since returning to the real world. He does love Clark. He does miss him. And Lois, on both counts. But there's an instinct deep in him - one a lot of people who were orphaned young have, all other strangeness aside - to slip away from permanence. No one is immortal, everyone can be brutally taken away, in front of him, blood splattering back onto his face.

Even a Kryptonian, who he has already watched die once. Doesn't he deserve a better life than this?

Probably. But Bruce doesn't feel like kicking him out, especially when he's kissing him. His own response is slow, focused on it, and trying to let it drain his stubborn hesitancy like a cut under a snakebite.

Kinda works. Starts to, anyway. Better than nothing? He lays one hand on Clark's knee, and slightly above it; taps him there, when he gently pulls back. Well.