She's going to get a very playful reaction to that.

'Yes. Things go according to plan.'

They're not ever actually allowed to have a full set. It's far too domestic. Any time they start getting close to one, he'll suddenly 'need' to borrow some of the things for something he's making, since they're quick conductors of heat, or because he doesn't see the need to go get another when there's one right there anyway and then cunningly it will just never be returned to its proper purpose. Or it will melt because it wasn't made to the standards he was expecting.