If you can read that note from a solid place of detachment, he sounds like such a small person. A very small person who wouldn't even consider his decisions may not serve his children well.
I know that you, however, would look at every angle (and have) with honesty and self-examination when it comes to finding the best solution for your kids. That says it all.
I agree with Bea. Somewhere down deep, I bet he knows what's he's done...but, the whole house of cards will fall if he admits it. What a miserable way to live.
"You know, it's times like these when I realize what a superhero I am." Tony Stark/Iron Man
“Focus on what you can do, then do it with all your heart.” Lois Wilson