One other thing to keep in mind is that no matter what, do everything you can to save your M.
I have been told that I went above and beyond what most would be willing to do to save my M, and looking back now I realize it is true and that is another source of great comfort to me. I can look my kids in the eye and they know that once I realized that I had a WAW, I did everything in my power to change the direction for the sake of all of us.
I finally asked God to tell me when it was time to give up, and I got a clear sign as soon as she moved out after trying everything possible to save the M for 2 years so I filed for D. She was surprised, since I think her idea was that she would move out and try her new single life and see what happens with all options still open to her, even though I warned her all along that her moving out would be a huge turning point for me.
As a result, I have absolutely no regrets now looking back, but I know the XW has a ton of them and I could have predicted all of it based upon what I learned from other people's stories on this site.
ME/XW:47 S21, D19, S15, S14 M:21 T:26 W moved 6/10 I filed 7/10 D final 4/12 remarried 8/12 W wants to R 12/10 and 4/11 but I decline