If he noticed the blush, Tony didn't let on, nor did he if he noticed her discomfort. He just went on grinning, twisting to surprise a passing guest with the remainder of his sugar plum ("Have you tried that? Fantastic.") and catching Nick meandering away with his bottle out of the corner of his eye. His smile was gone when he turned back to Sue, lips pursed in frustration before he regained that smirk.
"Come on, the fireworks will be on for a bit," he instructed, taking her arm to lead her back through the dwindling crowd, sucking sugar from his fingers. He didn't want to be out there with them at the moment. He didn't really want to be here at all. He did really want to work out some of his frustration on something precious of Nick's, or at least something that made for a satisfying explosion. He released Sue half way across the room, leaving her to follow by her own will to where he dropped himself on the piano bench, fingers just skimming over the keys, eying the half-full, assorted glasses left on the lid.