That sounds like my STBXH.
It became a way for him to avoid all personal responsibility for his health. He’s sneak out to buy chocolate after dinner, then whine
“ I had to I was STARVING. How can you expect me to be full after that rabbit food”
“ it’s ok for you, you like vegetables. Why are you forcing me to eat that muck? “
“ I hate X , I’ll get a carry out “ ( the meal he has asked me to cook)
Basically he turned into a spoilt whiny teenager. All his resentment and anger about his weight was turned towards me because I was MAKING him do things he didn’t want to. If he was hungry it was MY FAULT. He enjoyed getting one up on me by sabotaging his diet at every turn.
If I bought treats for the kids, it was my fault he had to eat them all. If I didn’t buy treats for the kids, it was my fault they had none. If I didn’t buy treats but Let the kids buy them on the way home from school, he would sulk and harass the children until they gave him some.
He eventually lost about one stone of the ?? 5 or 6 he had to. But then he became even more angry because, according to him, it didn’t make any difference . I’m not sure what he expected to happen - maybe Hollywood arrive with a film contact or a super model ravish him in the street.
So he put the weight back on to spite me. Now he tells people that he tried to diet but it didn’t work. It’s bollocks, he never tried at all. The only person who worked at it and who was invested in it was me.