Yes, but it is too late with this couple. He got fed up with DBing, has HUGE hatred for his XW, met another woman and lives with her now. At this time they are dealing with previously well-adjusted, good kids, who are now very troubled and being abused because this guy and his girlfriend think they aren't disciplined enough. It's really REALLY sad!
I wish she could have realized all this years ago. But after going through it as a confident and observer, I can see how there's nothing that would have changed the course of this. All of this went the way it did.
I do think if he had just went off by himself, completely let her go, and worked on improving himself and creating a great independent life, rather then seriously connecting with someone else out of weakness (rebound). Instead, just have fun, meet plenty of guys and women and create a great network of friends, maybe develop some crushes, go on dates even (since he was divorced), but wait a good long time before gettting seriously involved, stayed "cordial and nice" with the X.... well, I think there might have been a chance of reconciliation. Maybe only a slim one, but at least possiblity would have been there...
There is no arriving, ever. It is all a continual becoming.