I feel for you. The emotional pain can feel more tremendous than physical pain.
The thing that really hurts is that one crazy selfish lady is majorly messing up the lives of 5 people (you and your children).
I really hope that where you live that there is a long waiting period before the D is final. In the meantime, just continue with the happy outward appearance (even though you are suffering inside) and you may never know - miracles can happen.
Have you considered talking to one of the DB coaches?