You appear to have identified that your anger stems from loss of your family and that is directed at W. It is not righteous anger as an overall result of W behaviour within the religious context. W is defying religious conventions of leaving and the A is the most important part of it, and the loss of religious connection?
Have I understood correctly?
I have read and reread your posts and I am glad that IC is helpful. I would like to see you more at peace with this as I think your anger may cause you to react sooner than you should and possibly with more force.
It is V belief that if your precious children are in any way at risk that MCS must take action. The incident with W at the nursery is at minimum upsetting. MCS, this seems to me to be worth a closer look and certainly a review at the nursery. Mza is right on this and as a fellow parent will give good guidance.
It can be the case that W is projecting to you her own feelings in her sitch, her sense that she is at sea and her parenting skills are less than maximum. I doubt though there is such a thing as a perfect parent!
It is clear W is coping poorly and she is paying a heavy price for her actions, her EA/PA with OM is probably not the happy ending W was seeking. Reality is kicking in especially with parenting taking its toll.
In addition MCS has changed, his more child centred focus and more involvement with his children means that what was a valid disgruntlement by W is no longer so. It is harder to spew on you were x, y, z pre BD. As the valid response is, this now and different. The spew is then you will go back to that! The response only time will tell, but MCS says it is intention to put that behind him.
W is lost MCS without her happy ending and she will need to turn it around for herself. If W can not cope then you as the more stable parent may need to step up to the plate.
V
Freedom is just another word for nothing left to loose. V 64, WAW