Serenity is an angel! I think many of us have tried to be in your corner!
Why not browse Amazon and see if there are any age appropriate books you can read with your son about separation. I agree it is a delicate situation and for now you must deal with what is in front of you and that is your W being gone. Children need truth in this situation (IMO of course) and they also need protection. I can't imagine you wanting to expose your son to your W at this point. It just wouldn't be healthy I don't think.
