She seems very confused (or maybe I am based on what you are describing). That is actually pretty normal from what I have learned about a WAS. But, if she is confused, that's a good thing.
Keep doing what you are doing. She is watching. She may continue to bring up D - you cannot control that. Just stick with I can't make you stay/I don't agree with that decision.
What are you doing to GAL? Are you making yourself too available to her? Some of the things I have done are going to dinner and a movie with a friend after work - never did that before. If we are having a conversation that is going well, I am the one to end it - "I'm beat, gonna hit it early tonight. Good night." She needs to miss you and to realize that what she has built up in her mind as a wonderful life after you is not what it will really be like.
Just be strong, pleasant and upbeat aound her, without over doing it.
