What you've read reconfirms that you and your marriage are not the problem. This is all about him and he has a journey to make to grow up.

Hold on to those wonderful memories so that when you are feeling down or confused, pull them out and remember the good times. Don't drink from the pitcher of Kool-Aid that he may offer up to you...you didn't break him, you can't control him, nor can you cure him. He must figure things out from the time he was emotionally stunted and grow up from there.

This is your time to focus on you and your children. It is a time of growth and learning for you as well. I sorry you are going through this, but hope that when he completes his journey, he will want to return to you and your family as a mature man who is willing to do the hard and necessary work to make your marriage even better than pre-crisis.

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.