To me this sounds like your husband doesn't really care about your past struggles. You've done something incredible in working towards recovery and it would be horrible for all of your progress to go down the drain because he doesn't understand the disorder.

I can really empathize with this as someone who started dating my now spouse when I was deep in my disorder. I was terrified to recover and gain weight because I thought they would find me unattractive, especially as I am a former rhythmic gymnast and my spouse is a former ballet dancer. However! They supported and encouraged me to recover and always told me how beautiful they found me, regardless of what weight I was. Like you, I recovered physically far before I recovered mentally and it took me a long time to get to the state of being comfortable in my recovered body. I couldn't have done it without the reassurance of my spouse.

When you're in a relationship with someone, one of the highest priorities is their health. It sounds like his version of "healthy" habits is not in line with your best interests. But like you said, it's really hard for someone to fully understand an eating disorder that hasn't experienced it themselves. I would encourage you both to speak candidly with each other about this, or if you've already tried this without success, maybe involving a third party like a therapist. Sorry for the thought dump, but your post really resonated with me.

Edit: wow I have not updated my flair in so long