Yes, marriage counseling would be the best answer, but now what I really think. Can we say, jerk. Hopefully he was just stressed and venting when this happened, but when this happens with my family/friends I let them have my unused needles and a spare meter and let them try it out for a week. Normally after the first day of counting carbs, giving shots, and testing their blood sugar they understand a little more about what I go through, but they will never fully know.
I would also relay the message in an analogy. Something like, Well honey don't we have to update our virus protection on our computer every year? Then something like, You see dear, my body is like a computer and T1D is a virus. If I don't have the proper tools to take care of the virus (aka. diabetes supplies) it could shut down my entire system and I would die. Just like new virus protection comes out every year, so do new technologies to treat diabetes. I would really benefit from this new (product name here) because of (reason you want product). *I would use the doctor card if you have it* And my doctor says....(insert doctors opinion here).Or you could use some kind of sports analogy...I don't know what type of guy he is, be creative.
Like we all get overwhelmed sometimes, so do our counterparts. You know when you two got married, he married diabetes as well. In sickness and in health. He could just be frustrated because he wants to take really good care of you because he loves you, but he just doesn't have the means to do it. Everyone on Juvenation has really good advice. Hope this helps.