This is just a part of the process. A lot can happen before the papers are filed and processed.
In the mean time, this is the time when we learn just as much of what we are made. This is the time when we let go, lovingly. And where we also let go any anger, resentment, and bitterness that we might want to feel.
That stuff can kill us and certainly isn't healthy for us.
Instead of casting judgment on your W, work to find it in yourself to accept this is the path that she is choosing (at this time) and support her (but you don't have to help her or do it for her) in achieving her goals. Like you would help any friend achieve their goals.
It is up to you how you want to handle this. There continues to be no right or wrong. Just choices, dignity, and integrity.