Then I would tell her thats a problem for me, and if she doesnt address it it will lead to issues in our marriage. I did not marry a fat lady, I am not attracted to fat people, they disgust me. Im not a stick thin lover either, Im not expecting Olympic gymnast levels of fitness.
Honestly it would probably result in infidelity on my part if it wasn't corrected.
Barring uncontrollable health issues (which would be a different discussion) Its not going to happen, so on my end that topic is quite moot.