@mandrake70 I hope that in the end, you will realize that you tried everything you could, and that you were instrumental in keeping your younger daughter on an even keel through it all. Children can "see" and understand a lot more than we realize. Your actions now will also educate her on the type of partner she will be happy with, someone who was fair and looked at everything. You're right, too, in not sharing everything about the struggles between your wife and you, to your children. Be gentle on yourself, especially on those darkest days. Don't be afraid to reach out individually yourself, for professional help if you feel it would benefit. Many do, and it can make a world of difference.
Ginger