Hopefully your hormones are just out of whack making you feel this way. You have lost a significant amount of weight already so I would guess that getting healthy really is important to you.
Having all of this junk around does make it much harder and there are times when we all slip but it should be the exception and not the rule.
The other thing is, it is very hard to force the people around you to change because of your disease but like others said it doesn't mean you can't make that happen albeit slowly.
I am the cook in my family and just started changing how I cook. I make a Protein, veggie and salad almost every night. Maybe once or twice a week I will make a potato, rice or other starch. Sometimes I have a spoonful of mashed potatoes sometimes I choose not to. I have found over time that my hubby likes this new way of eating and actually requests many of these foods.
I have also learned that he can have his fast food for lunch when he chooses and it really does not bother me anymore. For me, that food is just no longer desirable and I used to eat it everyday. When I think about what I ate before, it sickens me. How many times I would stop on my way home at McDonald's eat crap from there and then go home to cook for my family.
I am glad you are talking to a therapist on Monday. Give yourself some time to adjust and give your man a break too. They didn't choose this so it may take some time to adjust as well.