Ianto feels a bit as though he has done something wrong, with the way that John is suddenly responding to him. Which is ridiculous, because as far as he's concerned he was entirely justified. But it makes him feel guilty nonetheless. He doesn't want John walking on eggshells around him. He just doesn't want -- that. To be implied that he is any less of a man because of who he is or what he likes. Or what he doesn't. It's a touchy subject, alright.

"I'd like that too. Maybe with some drinks again?" he adds, raising his glass at the other man, hoping to placate whatever it is that has set the other man on edge.