Your w thinks that divorce will begin the healing process. Why? Because she thinks that this piece of paper will relieve the stress and guilt feelings she has and bring her much happiness. It won't. It's the mlcer's way of thinking. If nothing else, it will create a lot of heartache for all and the fallout of a divorce isn't always pretty. Her rose colored glass need a bit of tweeking.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.