I'm so sorry, somehow I missed reading your sitch! How awful--I can't even imagine what you must be going through.
I wonder if your H is similar to mine, in that he only has a limited capacity to be supportive and strong. In our crises, H was there for a time, then apparently found it overwhelming and left in one way or another. While it made me angry, scared and intensely lonely, I realize at this point that I have always been the strong one. H chose to take care of himself, over and over again. In the early days of our relationship, he was more supportive--but then, most people show their most positive traits when trying to establish a relationship. I think I've spent the past 17 years thinking that was the real H and waiting for him to reappear. But that was only a temporary persona. I hope that your H is different from that--I'm venting, not telling you to abandon all hope!
I hope that you have many other sources of support in your life! You'll always have us, at least!
M60 H52 D20 M14 yrs OW-old gf from 1986 bomb-5/18/08 H filed for D-9/10/08 D final 4/24/09 xH remarried (not OW) 2012