ANewMe - I am extremely sorry to read about your s32. I hope he is on the road to recovery. I cannot imagine the pain of watching one of my kids battle cancer. It puts any of my problems into perspective.
It is pure conjecture on my part to give any insight into what your H's actions may or may not mean. That being said, his visit could be as simple as guilt over the lack of contact with s32 and knowing his son is going through one of the roughest times of his life. The surgery also has to weigh on H's conscience in that his son is mortal (if your H has a conscience). H's parents being there may certainly have something to do with his sudden contact. At least, that is what seems most reasonable to me. That way, he can at least assuage his guilt somewhat and not disappoint his parents (again?).
I really would not read any more into it than that. His R (or lack thereof) with s32 is completely seperate from his R with you. Reading more into his visit to see S32 while he is in the hospital will just set you up for more disappointment and hurt. On a brighter note, it may very well be that some of your prayers are being answered. Only God knows. Keep giving it to Him and focus on the things that are well in your life (including the treatment for your s32 cancer) and those that you can continue to change for the better.
I think BFM's advice is good. I wish you the best. You and your family are in my prayers.
FW
"When one door closes, another opens. But we often look so long and so regretfully upon the closed door that we do not see the one which has opened for us." - Helen Keller