Tony grunts instead of replying. It's not the first time he's told Gene that, and it probably won't be the last. Maybe he's not doing a lifelong slave any favors by trying to train him out of his subservience, but, fuck, he just wants a little more honest human interaction in his life.

He's really not feeling better about any of this, but Gene has called him out on his sulking, so it would be juvenile to continue his 'hide in the lab forever' campaign (he does give it some serious consideration, though. it's very tempting). So when Gene asks him if he's back for dinner, Tony, resigned, just says, "Yeah."