Oh, my dear, dear, dear friend....
I read your post & lost the focus in my eyes - and brain - and had to start over! I'm so, so sorry...
your son sounds like quite the perceptive young man! He was trying to connect with you, I think... and in his way, comfort you, too. What he told you was touching, to me... there is probably a lot of healing for both of you in that space.
Having just gone through this with MIL, the only thing I learned that I can offer you... that might help... is that often the outer representations of people and the way we perceive them when dealing with loss and death aren't always what they seem. That said - you will have an opportunity to strongly, directly, and positively connect with some people; they just won't be the people you'd expect to be able to do this with.
Please do breathe in, luxuriate in those positive connections. They'll help quite a bit.