I think a big reason for this non-existence of the 'limbo' area is the simple fact you really still need to DB right up to that point where your WAS says "I will do whatever it takes to save this marriage" .... otherwise you can easily fall into the 'cake-eat 2015 festival'
I think some feel that during the initial DB phase, that we have to become A-holes ... its much later one realizes that you can DB, place boundaries all while being kind. Its foreign because alot of the DB principles actually ask us to do something that is so opposite from what we would do, from what we have ever done.
