I took my son out to eat tonight and we had a long talk about his dad. I just told him that his dad is going through a tough time right now and he may say things and do things that are out of his character but he still loves you.
I can see my son is angry. He doesn't like his mom to be sad so I'm trying my best to stay positive. He asked me if I thought there was a chance everything will work out. I told him to never lose hope.
I think this is all ok. You need to be honest with your son.
But at the same time, I do not recommend discussing the details of your plans and about the books and the site with him. There is too much going on here for the spouse to chance upon it.
I would also be careful because you don't want your son accidentally taking your "side". These nothing a WAS spouse loves more than that "me against the world" mentality. Nothing fuels them like trying to prove to everyone that they are making the right decision.