They say that a lot of times if you end up waiting up to 2 years and just work on yourself, go to counselling and figure out what you did wrong and correct those things in yourself, that 75% of marriages can get back together. usually by then the women will figure out that the grass is not greener on the other side. They will hate having to try to provide for themselves and the children. They will find out that dating is not as much fun as it was when they were 16-21years old. Older people dating tend to more often lie/cheat and withold information (like that they are married) even those who claim to be Christian. So if she does go through with the divorce, do not give up on her, keep praying. If you do not date, that will even be more welcoming to her coming back, you can tell her that she has only been the one you wanted, it never changed. My friend did and his wife came back 1 time for about 6 months at the 3 year mark and finally they are remarried for good at the 5 year mark and their marriage is stronger than ever. Have faith that the lord will protect her and keep her safe as she struggles through all of this confusion. Ask the Lord to show you what areas you need to work on in the meanwhile. Good luck and God Bless.