I hope you and your wife have come to a strategy that work for both of you.
However, your wife is not in charge of your health and diet. You are. As inconvenient as it is, you might have to do some of your own food preparation.
I come at this from the other side of the story. I’m “the wife.” When I started cooking more healthy for my own benefit, my family rebelled. They were not happy. And I can’t control them, but I wasn’t going to cook some of the things I knew weren’t good for me any more.
My approach was this. “I won’t be cooking or purchasing X, Y, or Z any more. You can have X, Y and Z. I’m not stopping you from that. However, you will have to purchase or cook X, Y and Z yourself.”
There are still bags of chips in my kitchen, but I’m not the one who brought them home from the grocery store. And our dinners are much healthier because I cook healthier. What they do on their other time, I encourage but don’t control. Except for our daughter who is too young to know better. Her choices, I limit.