I did have some very quick legal advice. They just said 'It's all bull.. and to offer to go to mediation'. However, that could make a D process quicker and make R with W even worse. If W wants a D then she can make the effort to do it.
However, since then, I found out W is hiding money from D and now she knows that I know about it. I know she had a lot in Jan 2018 and she will have to show 12 months of accounts. Therefore, I will wait about 2 to 3 months and then I may have to look to D her to help ensure that I get a fair deal. That is assuming W doesn't deliver D papers before then which she might well do.
Why dont you take control of the situation rather than wait for her?
In my opinion, the longer you wait on this the worse this situation is going to get... it is not going to be getting much better to be fair.