Oh sweet pea, I'm so sorry - I think it's not 'men' who are so frustrating, I think it may be *the* man to whom you have currently hitched your wagon.
My partner has never. ever, ever been anything but totally supportive to me on my weight loss journey. He has given things up, restricted intake, upped his exercise, stopped eating carbs/sugar/whatever whenever that was what I needed at the time. I could not have done this without him.
You might want to look into couples counselling. If your partner is derailing this huge, massive, life-altering thing you have done, even inadvertently, then that needs picking apart by a professional xxx