Do you want a divorce? If you do not, you would be wise to stop bringing it up to your W. When you keep bringing it up you are putting pressure on her to follow through.
MLC turns our spouses into people we don't recognize. She will pull up anything she can think of to justify what she is doing. This is where the saying "Believe nothing of what they say, and only 50% of what they do", comes in handy.
This takes a very long time for our Ss to work through. Step back, don't get in her way, and let her take her journey. The gift in this is that you get to do the same for yourself. Only you get to go about it sanely.