I'm sorry that things didn't turn out so well when you tried to speak to your son about the situation. Do you have them in counseling? Is your son close to any other male figure in his life besides his father? I know of several children who have been through this and they tended to open up more w/another male that they felt close to.
Your son needs to feel safe when talking about the situation and that's why it might be best to have him go to counseling or a close male take him under his wing. Some kids tend to open up more w/someone outside the family circle because they don't want to be disloyal to mom or dad.
I think I would allow him the space and time to think about things and I wouldn't raise the issue again this weekend. When he sees that it's safe to talk, he may very well open up a little bit to you, but it's not going to be a lengthy, mind boggling talk. He's digesting everything and trying to figure things out a little at a time, somewhat like the mlcer.
Good luck! Be patient and don't push for more conversation right now w/him.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
