Healthy diet and relationship

I live in an happy relationship with a man and we both share a passion for food which is probably one of the major reasons we started our life together. He cooks every week and enjoys sharing his passion with me.

On my side I am trying to take some distance from this food passion and find other ways to enjoy myself that do not challenge my body and want to eat less and healthier. How to make survive my relationship and yet manage to eat what I want without feeling that if I say no to my partner, he is offended, feel I am not fun anymore, that our common passion disappeared (and decide to find someone else). I would like not to make a choice and I cannot and do not ask him to renounce to his fun.