It is amazing you've help on as long as you have. I, too, feel like at some point I could be where you are. It's been 7 months since BD but a whole year since my H left our R emotionally (EA w OW).
I give you a lot of credit for asking the big "us" question of your W. BUt, you've done everything you could & you gave her all the time in the world to reconsider.
I'm glad you feel at peace about moving on. It is none-the-less still very hard! Good luck moving forward!
M- 18 T-21 S-14,11 & 10 BD 6-18-2012 (OW-EA) H moved out 11-3-2012 10-5-13 Me- I want a divorce. I want to move on w my life. 11-25-13 Jointly filed.