Fuck, don't do that-- stopping him was bad enough and Tony couldn't explain yet why he resisted Steve's tug, jerked his arm out of the hold with his hand balled into a ready fist for the next person that tried to get close to him. "No, its--" was all he could come up with, not about to let Steve go off and start another useless fight with Barton even if it would get them off his back. Barton would use it as an excuse to blow up and quit something else that Tony would have to hear about. Where was he supposed to send Steve instead? It was a closed circuit, eventually he'd find his way back around. Deflating so he could stretch some of that tension out and let his fingers flex, Tony grinned and went with the truth, "Quickie found Dummy," with a tilt of his head back the way he had come then a look away down the hall as his smile stalled and broke down. Nothing to talk about, nothing to see here, they were done. Done. And Tony knew better than this, but he'd never had to break up with anyone before so he said, "He doesn't have anything better to do right now, he'll take care of you if you return the favour," like there was nothing to break and that was the only reason Steve could have cared.