Are you projecting you feeling onto your son? Has S told you he feels rejected?
Guys are very different in their relationships than women are. Even when my H was still in the house, he and our sons had a very different R than I had with the sons.
Let them figure it out, either it will happen or it won't.
Your job is to work on you and decipher why this hurts you so much and what you are going to do about that.
There comes a time in this process when the scales fall from our eyes and we begin to see our WAS as the person they really are, some of it's good, some of it's not so good, some of it's very disappointing. For so long many of us (fixers) have been filling in the blanks, ignoring some crap behavior, living in a bit of a fantasy world and then we begin to see the real person without our "fixing touches."
And we are a bit thrown by the reality.
Me 57/H 58 M36 S 2.5yrs R 12/13
Let me give up the need to know why things happen as they do. I will never know and constant wondering is constant suffering. Caroline Myss