"Oh," Steve said, trying not to let his face fall in disappointment. "That's not - it wouldn't be a problem, that's hardly any extra work, to heat it back up." He cut himself off before he could gear up for a full ramble, because babbling was never all that attractive, and besides, he didn't want to come off like he was pushing for anything. If she wanted to eat her dinner, well, wasn't that what he'd invited her over for in the first place? He could be patient, if she opted for cleaning her plate first. That was, undoubtedly, the gentlemanly thing to do, and Steve had always striven to be a gentleman.
But then she seemed to give him a second option, and Steve wasn't quite sure what to do with that, because he'd just gone and scolded himself into accepting that they were going to spend the next forty minutes eating because that was the proper thing to do. It left him a little bit flustered, and he could feel the heat of his blush beginning to spread down into his cheeks.
"Oh, well - now that you mention it, uh - it does twinge a bit." he said, unsure if this was flirting or not. He was pretty sure this qualified as flirting. "But... lady's choice. Your call, whether you want to finish dinner or not." There, that put the ball firmly in her court, left it up to her to decide. Which was maybe cheating, but Steve didn't want to be the one to make this decision.