So sorry Earthmama - this sounds really distressing for you. Despite what you may indeed get from your husband's focused attention, you sound miserable.

It sounds a lot like you don't feel in charge of your own body and that you are being objectified in a way which diminishes your sense of value. I think that perhaps you recognize that in some way, you are being abused.

I don't think this is a harmless chubby-chaser/BBW appreciation issue, but a serious concern about being abused by a partner. Just because you get something from it, doesn't mean it isn't abuse.

Fetishes in relationships tread close to the line where consent ends and victimhood begins - flying close to the flame is a big part of it.

Consenting from a care for the specialized desires of a partner sounds generous on your part, but if you have no specified "safe word" (so to speak) where you can voice your own choices, sustain your own dignity and assert your self-respect when you want to, then victimization is likely. Your husband's interest in feeding and sexual arousal from it's results could be a displaced expression of rage toward you, or toward women, or of his own powerlessness as a child - it may be disguised from himself within his own history. Whether it is or not, you need to see a professional who can help you regain ownership of your body. You deserve to be happy on your own terms. Be sure to take care of yourself.