I can relate to the weight issues. I've always been battling it. I did WW years ago and did okay with it. My friend and I just joined again six weeks ago. I have to say I LOVE it. I think it's important to do it with someone and to do the meetings. It makes you accountable to someone other than yourself. It's much easier than counting calories as there are some calories that are better than others. WW takes fiber, fat, protein & carbs and assigns a point value to the food. You can then spend your points each day and some extra ones for the week for special occasions. It's amazing when you are conscience of what you put in your mouth! You can pretty much have anything you want to eat but you have to budget your points. Portions are also a revelation! A normal size portion is generally a cup. A restaurant will generally give you 3-4 servings per any given meal! It's ridiculous.
All that being said, I would never bring up or mention anyone's weight or eating habits. It's a personal thing. I applaud you for trying to save your hubbies life. At least you know you are trying. I lost 60 lbs about 10 years ago. The only thing that got me there was being sick and tired of being sick and tired There's nothing anyone can say or do that will change that. It has to be a decision made by the person themselves. No amount of comments or suggestions will get you there until you get yourself to the point where you're ready to deal with it.
I personally would do anything to avoid surgery, needles etc but that's just me. My suggestion would be to find a friend, get to WW and work on your own weight lose. Maybe if you just tell your husband, you can't have certain things in the house because they are too high in points for YOUR consumption, he'll get inspired and join you. I absolutely know that I'll be counting points for the rest of my life. I just have to be diligent about tracking them and eat mindfully.
Check out WW. They give you a free meeting so you can see if that's the way to go for you.