I'm just going to say, with a bit of tear in my eye, that you seem so clear about things now.
It's powerful to read your words that take ownership and responsibility for the man that you used to be. It's such a hard thing for most of us to do.
Ironically, I've come to learn that the DB principles really begin with US taking an honest look at ourselves and correcting what was wrong with us. So many on this board leave this part for much later, missing out on a great opportunity for personal change.
Again I'll just say that to me, your heart is in the exact right place at this moment in time. Honestly.
Once a spouse decides to leave, all bets are off. When they have set their minds to be done with the marriage, our ability to influence them directly is severely curtailed. At that point I firmly believe that we have one last shot - Fixing what was wrong about OUR behavior and loving them unconditionally.
Which is just what you have done.
This woman loved you once. She can be moved to love you again. You have an advantage - she has already fallen in love with you once, married you, had children with you. You are her history.
Show her what she fell in love with again. BECOME that man again, and never change from that, and I think your outlook is good.
Blessings,
Bill
"Don't tell me the sky is the limit when there are footprints on the moon."