Yes, yes & yes! Primal Blueprint made me realize that my drinking was a problem. I tried to control it, but couldn't, so I got some help. I don't drink anymore, and I feel 1000% better, just for being sober.
I too have struggled with depression all of my life. I also have ADD, so I am easily overwhelmed, and I have the attention span of a gnat. Medication has helped with both of those things. Particularly now that I don't drink.
You have a LOT on your plate. So pick the most important thing first. Looking from the outside it seems to me that your biggest obstacle right now is the booze. If you quit drinking & eat Primally, the sugar craving will take care of itself, almost immediately. As far as cooking for two, make your meat & vegetables as you would for you, and add a side of starch to keep hubby happy. If he likes potatoes, make some for him. If he likes rice or noodles, make some of that. If he likes pasta, put meat sauce aside for you to put over spaghetti squash, and he can eat noodles. He may even love yams, and those are totally Primal. A crock pot is a God send for a busy life.
If you haven't already, I recommend that you get some support around your own drinking. It is really hard to quit by yourself, particularly if you live with an active alcoholic. Try to remember that you are getting healthy first of all for YOU, and that you have no control over your husband's drinking. Take care of yourself, first. Do what you need to do to claim & keep your sobriety. If he sees you happy & healthy & loving, he may just want what you have.
Feel free to PM me, if you want to chat about any of this. I send you my sincerest best wishes & hope for recovery.