I'm in a similar quandary with Mrs. Skinsfan, but at least your wife will eat tuna steak. Mrs. Skinsfan will only eat canned tuna, mixed with mayo, onions & relish on toast....the only way she'll eat other fish is if it's deep-fried, served with ketchup and she only eats well-done steak...I'm talking glove leather, hockey puck steak.

I used to apologize when I served it. She's the same with pork, so I've learned over the years to modify my technique so our food is done how we like it and it's, (usually), done at the same time. For steak, the sous-vide really helps and I can sear off our steaks at the same time.