Sure, if that’s how you guys play it. Or you can be in charge of your nutrition (and help out your partner if they’re up for it).
EDIT: Just re-read that and wanted to make sure that this doesn’t come across as an affront to anybody’s lifestyle. You know, to each their own. My partner is a type 1 diabetic and we have radically different diets but I realize that that is a luxury that might get a lot more difficult with kids and all. 