I think at it's heart, DBing isn't so much about saving a marriage as it is about helping us be better people so that MAYBE our spouses will want to stay with us. So, I say keep going with the DB, work on you and let her do what she's going to do. You can't make all these decisions right now so why worry about them? If she does get with her ex, then cross that bridge but it just doesn't seem smart to sit here and deal with it like it's already happened. This may not be an approved suggestion but it might help if you try and take your W off the pedestal. Remember the times she wasn't so nice to you, remember her faults. That might help you put this in the perspective you need to let it go. Then remember that you're a good guy, good enough to reach out to some strangers for help when you know you needed it, and that makes you a rarity. Other women will see that if it comes to it. This is not the end of your world even if it feels like it.