Hi Colleen: 
You’re a Psychologist? How could your Life be boring? People are so interesting.
That is a pity that your Hubby lost his Dear ones at an early age but that doesn’t give him the right to stress you out and upset you by smothering you and possibly raising your blood sugars. That is too bad that he didn’t hear you when you had the talk with him about it.
Anyways, I can understand where you are coming from since I would feel the same way. My Hubby and our Kids have thankfully not been over-protective of me due to Diabetes nor have they been the food-police, since I was a Diabetic long before I “knew” them. I do notice them keeping an eye on me if they feel that I may be low though and they’ll ask if I’m low or if I need a juice or if I’ve tested lately. That’s Fine, but I like my space.
I was also in DKA and a Coma when I was 19 because I forgot my shots before going to work. My Parents allowed my Hubby(Boyfriend then)to stay at my bedside in ICU since the Doctors said I wasn’t going to make it. But he realized that I was my own Person and independant for the most part. Needless to say, I never forgot my Insulin again.
Most People with Diabetes are able to look after themselves and can be treated as a “Normal” Person much of the time with perhaps a litte help on the side.
It is Great to have someone to care about us but I do hope that you or someone else will be able to convince your Hubby that you do not need “that much help and caring”. Good Luck to you both.