It sounds like you guys are both grieving and possibly even both dealing with some PTSD (Ive been diagnosed for years and I know I have similar feelings to what you’re expressing on both sides here when I’m experiencing a PTSD episode). This is such a difficult and painful situation. Regardless of whatever else happens I hope you are able to heal and I am sending you so much love.
Maybe you could expressly communicate these things in a way that isn't a pejorative. Perhaps he's grieving on his own. I'm so very sorry, but I think you guys would have a better chance if you could communicate in a more effective manner. Tone is everything