He was so distracted by the idea of cooking that he'd actually forgotten, for a moment, what her restaurant used to be. But as soon as she says it, he realises the reason he'd forgotten is because he never goes there, not since her wedding, for which he made a special exception.
He gives her a rueful smile. "I'm very grateful, but I honestly don't think I could. Don't worry, though. I earn some points just from being in the Defence Force, apparently!" He still gets amused by the idea of the AIs giving him points for potentially working against them!