I echo the above. Forget about WW, she is in God's hands now.

Protect first and foremost the children from having to be raised anymore than necessary by a selfish WW who will undoubtely not raise them properly (to coin Mr. W). She will be in and out of relationships, jobs, etc. You have been the glue in her life more than likely and when you are no longer there she will unravel and become worse than ever imo. Your children will suffer under her raising and example. Divorce is ugly, no way around it. Form a battle plan that firsts looks out for the future of your children and secondly shelters your heart from more pain, in that order.