I have to say that I agree with Piano about how helpful your posts are. I read them, and I think about them, like forgiveness and others.
I was not a child of divorce. But my best friend was (her dad had multiple affairs, moved out, is currently MISERABLE while her mom is remarried and happy) and my friend is completely stable, intelligent, and successful. She was. . . 8, I think, when the divorce happened so she was fairly old. I think it's easier for kids who are younger.
All to say, S will follow your lead. If you show him he can be great however his parents' relationship is, I think he will be. But if you show him that he could be damaged, then you can inadvertently cause it. This can come across even in small ways, so watch carefully to make sure you are confident about S's future in front of him.
I'm sure you do this already, but I wanted to mention it.