Are you sure she can't cook? Maybe she messes things up so you don't expect her too...sorta like the conversation you guys were having the other day about never getting the grocery store list correct, so the wife stops sending you there.
Ahhhh, is that what it is
Kinda like the time the dryer caught fire in our house. I rarely, if ever, do the laundry anymore. Apparently I can't be trusted.......