Well, I think most sources would agree that there needs to be a "no contact" rule when the affair ends. The point of major contention between the "experts" is how to best go about that time when the affair is ongoing. I would say many experts out there say that there needs to be an end to the affair before anything else happens and advocate the forced ending of the affair if at all possible.
What is being suggested, as far as you have posted it, is that you are NOT forcing an end to the affair by asking her to leave, or leaving, you are protecting yourself from more pain. To a certain extent, I think this is somewhat viable, even by DB standards because it is not so much an ultimatum as you TRULY giving her the space she's no doubt asking for.
So, in that respect, I see where the author is going with that. I still think it's best not to put such things on the table unless you REALLY want them to happen because they may very well do just that.
Please, do move forward and like I said, keep reading just make sure you have YOUR goals firmly in mind when you do.
