There is a little about giving up the OW and going dark in Michelle's DR book. It's called After The Last Resort Technique and it's on page 219.
My WAH and I have been separated for 9 months. He's said all along that he wants a D, but we've been dating and having a fantastic sex life. He's also on a dating site and has had various girlfriends.
My story is long and complicated, and it's in the Separated forum. I actually haven't posted for awhile, but respond a lot.
I've just gone dark again and told him that when the 3 months are up, I want the D (in NC you must be separated one year to file). Though I've found someone else, if my H were willing to try, I would be so happy.
You can e-mail me at my regular address and give me a brief summery of your sitch. Maybe we can help one another. Rmespero@charter.net I don't have a whole lot of time, but will respond.