Welcome to the forums
@lorib64.
I understand your numbers and in my opinion they are pretty good. You've done really well to lose weight and come off meds.
Have you got a meter? I understand that you might feel the keto diet too restrictive, but what would your levels be like if you ate the same diet as your spouse? It's a lot easier to maintain a diet if you are sharing it with someone else and low carb is a lot less restrictive. But you'd need to a meter to detect how well your body copes with slightly higher carbs.
As for the benefits, you've both lost weight, come off medication and from the sound of it, all your figures are awesome. Most important, you feel good.
The trouble with using medication to mitigate a carb level that is too high for your body is that it can be a bit of a slippery slope, as in you end up needing more and more meds and eventually possibly insulin. That is not necessarily a problem if that's the way you want to go (my cousin does this because he doesn't want to give up his carbs) but it's a decision you have to make.
Personally, if I were in your position, I'd get a meter and find out what my body can and can't tolerate. Then you can make an informed decision on your long term diet plans.
Hopefully some T2s will be along soon to give their thoughts, it's a bit quiet at the moment because most of the UK forumites are asleep.