Steve and Tony
The moment dinner broke up, Steve was striding up to Stark's side, his eyebrows pulled together in a stormy frown, his mouth pressed into a line that was decidedly grim. It was an overreaction, maybe, considering that dinner had ended on a relatively reasonable note, apparently leaving only Steve worried about where their planning was heading. Then again, Steve was used to being alone in his outrage and irritation, so he probably shouldn't have been surprised that things had taken a turn, that most of the others at the table seemed to be opting for a course of action that Steve wasn't sure he could stomach.
If he could talk some sense into Stark though, that might have an impact. Stark was a lynchpin in all of this, after all, the only one of them with access to the resources they needed. Steve had - apparently mistakenly - assumed that they would be on the same page about this, that Stark would agree that the good of the revolution was more important than an ill-fated escape plan. Clearly, he'd been mistaken, but that didn't mean there wasn't still time to change Stark's mind.
Once Steve had reached Stark, he leaned in, his words a murmur meant for Stark alone. "I'd like to speak to you," he said, and if his words were more brusque than was polite, well, it was the best Steve could manage right now. "Somewhere with some privacy, please." Best not to do this in front of an audience, considering their respective talents when it came to getting under one another's skin.