He didn't think he was being difficult at all. Guarded, sure. Because he had no idea what was going on. No idea what this was. Tony was saying all the right things now. But tomorrow? The day after? He'll be joking again, dismissing it, pretending things never happened, guarding his own words and feelings. Sometimes Gladio wondered if Tony thought he was too stupid to notice, or if he thought himself a better actor...

Gladio folded his arms on the table top and then propped his chin on one hand, frowning.

"Callin me my name isn't going to hurt me. Calling me a name others've called me won't hurt me. You've made an assumption on that, Stark. But... thanks, for asking." Since he clearly needed validation there Gladio would give it. But the rest... "I'm asking because I don't know. This isn't something we've done before. And we've never talked about this shit. So yeah, I'm damn well going to ask." And somehow it was reassuring to know that it wasn't just Tony needing to get off and it had meant something.