(((peace))) I am sorry that this has happened. You and your children didn't deserve this but at least you know you did EVERYTHING you could to save your M and your children's family.
I think most family law attorney's are almost as low as pond scum...and your H's attorney sunk even lower than that today. I know that they think it is just business but I just don't understand how anyone can feel good about helping to cut a family in half.
Maybe now that this is done, your H will eventually have to look at himself and what he has done...but as we have learned here, you can't expect that.
I hope that you are dealing with this as well as you possibly can...I know it is hard but keep moving forward in your life and finding the things that fulfill you. You are an amazing person with such great insight and compassion...your H is a fool!