Good for you! Knowing you made the right decision should help to make you stronger. There is absolutely no logic in how the WAW thinks. It scares me to death when I think of the risks I was thinking about taking at the time I was the WAW.
That's why you can't depend upon her making "right" decisions. She's thinking out of her emotions and not her brain. She know the love you have for her.....and she will use that knowledge to work you to get what she wants. Don't let her wear you down until you can't think logically for your family.
Knowing what's the right thing to do......doesn't always make it "easy" to do. Making the right decision is the easy part. Hold your ground. Giving over to what she wants right now will not make you any brownie points. And, don't be surprised if she doesn't tell you that she was beginning to think there might be hope for a future at some point......until now! Now you've messed up and now there's no hope for EVER having a R together! It's just a continuation of the tantrum. Just remember that she isn't the first woman who ever thought of that little gem.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!