Truthseeker,
I've been dealing with this over two decades now. Sometimes my dh is very supportive, sometimes he leaves the room, sometimes, he says when I talk about it, it gives him a headache. I used to feel very abandoned by him when I needed to talk the most. However, I have learned that he also feels very frustrated that I hurt so much over various foo situations, and that he is helpless to control it or fix it. He has explained to me that it makes his job as a loving husband that much harder and draining because as a man, he feels he is supposed to protect me and make me happy. Everything that my family has done and still does is out of his control so he doesn't know how to make it better or make it go away.
I'm sure your husband cares and loves you very much, but is frustrated at his core as to how to resolve this for you. I think he probably feels helpless as you feel helpless in this sad situation. Your grief is understandable. And I can understand how you fee abandoned all the way around. It is a lot for us to bear and also for those we share are lives with as well. Maybe you could set up a time once a week with him that he will let you talk and try to be there emotionally for you for 1/2 hour, or maybe 15 minutes a day or something. Then you can both get ready for it psychologically and it doesn't blind side him. Also, you might try asking him how all this makes HIM feel as it effects him emotionally as well, but probably dares not mention it. He may need to get a few things off his chest and you can listen to him. It may help you both understand each other's feelings better and draw him closer.
Anyway you slice it, it is a heavy cross to bear for all involved. We will listen and be here for you. I have found that this forum has taken much of the burden off my dh as I have wonderful people here to help me navigate the rough times. I even share some of the posts with dh and that helps embolden him and make him feel less alone in supporting me. Hugs, Adria