Hi tears, and sorry to hear about your pain.
I sympathise with your difficulties, but with your husband's too. I'm Type 1 also and when I read your post I imagined your words coming from my wife's mouth. I lost my awareness of hypoglycemia many years ago and have to test my blood sugars many times a day to stay on track. Still, from time to time, I go too low and my wife has to deal with the consequences. Then she gets very anxious and tries very hard to get me to eat something sweet. But I've come to fear sweet foods over the years so, when the blood glucose levels are low and I'm confronted with the anxiety and the 'dangerous' food, I can become very uncoopertive and, in extreme cases, hostile too. It's a horrible situation for both of us.
All I can suggest in these sorts of situations is that you tell him you love him, and that it would make you much happier if he'd check his blood sugars, then eat if necessary. I find this is non-threatening and works much better than anything else.
If your husband is anything like me, he's feeling very guilty for what he's putting his family through, and very helpless at his inability to control it. Talk about it together and agree a stategy for dealing with hypos when, inevitably, they happen. I'm as diligent as I can be these days, be none of us is perfect. You can only ever do your best.
All the best,
fergusc