Bruce's half smile is answer enough to whether he knew what Tony meant or not. This part of their friendship is the fun part - the games they can play and points they can score where no one got hurt. There'd been some good times before he'd decided to leave.

They'd also nearly caused the destruction of the whole human race together, so there is that.

And Tony's question is a valid one. He'd threatened to kill Kiara to get her out of Tony, and he'd meant it, but she's out and she had said there weren't many of her kind, and there is that whole nearly destroying the whole human race thing weighing on his mind. Maybe he has a little karma to balance.

He looks a little uncomfortable - a little more uncomfortable than usual - and studies the "jar." "There has to be a better way than just killing her. She let you go." When threatened with death. Again, not something he needs to mention just yet, even if he knows Tony will be able to see it if he ever gets around to watching recordings from the lab.

"If nothing else, I know a wormhole that'll drop her on another planet where she can find a more compatible host." Where she'll be someone else's problem is more like it.