You did very well.

I don't think she is getting to the point I was talking about. What I meant if after a certain point, if LBS reaches and successfully maintains a level of loving detachment, it's possible that WAS will begin to think they may have lost LBS and regret it. They may then become concerned that they cannot get back even if they want to and become very squirrely about that.

Your W is still mad as hell about whatever she is mad as hell about. Nastier and nastier may be a sign that she feels that she has to do something, but is not sure what that is. This is a sign that you are dealing with a very confused woman who is in great pain. She is also likely very frightened about what she is trying to do, and still not certain it is the right thing for her, not that she will ever admit that to anyone. Nastiness is almost certainly not directed at you, even tho it might feel that way, so don't take it personally. Recognize her pain, and empathize as much as you can, and realize that there is nothing you can do to help right now.

Your MC's advice is a bit pre-mature I believe. W does not want to hear that you are still commited, because it will only confuse her more, and make her more angry. Besides, she knows that because you have made it clear. Lay very low and lovingly detach. Remember, in a MLC this is not about you. It's HER crisis, and you cannot help. Don't take anything personally.