I think your friend has given you solid advice. Sometimes the hardest thing to do is keep our mouth shut. I have to tell you I have really been at peace these last two days. To really let go of our W and just concentrate on us has made a huge difference in the way I interact with her. Once you realize that you will be in a better place mentally and more prepared to handle all she throws at you. Remember this is about you staying the course, I know we all want to get our W back but sometimes the best way to do that is to stop doing things to show her and to just do it because that is who we are.
Letting go is scary, prob one of the scariest things you will ever do but also one of the more important because it is when you really start to find out who you are becoming. She is not going to disappear and never talk to you again, you just have to make sure when she does you have ACTUALLY changed and are not putting up a front.