[Aimahn]

LOL admittedly being INTP and all I don't know that I'd be qualified or even able to give you advice on how to "deal" with your husband, but I think you made a good decision to stick to your guns. Metabolism is very real and from what you say you two seem to have drastically different ones. I don't know, I'd suggest maybe talk it out with him a little bit, adjust a little bit figure out meals that aren't super "diety" but are still healthy.

I found personally that talking things out, making a stand, and educating my family( there used to the three square heavy meals/ you're young you don't have to worry about diet and exercise mentality) about my habits really helped, At first it was sort of confrontational in the sense that there were two seemingly opposite sides with strong beliefs, eventually they just sort of accepted my ways and at the same time learned a little themselves and would consult me on how to be in better shape.

*mind you this is coming from someone with a metabolism similar to your husbands. So from his aspect I can see how you could get kinda careless with diet and still be in relatively great shape, it doesn't mean that he shouldn't be able to enjoy himself and eat healthier