If you truly let go, drop the rope, etc and you are totally free of your spouse then why would I even consider taking them back? There will so much baggage from the past that will need to exercised in order to have a healthy M, i.e my A and her WAW with no communication.
Presumably, when you drop the rope you are in a position to "objectively" evaluate the relationship and determine whether or not it is worth investing more time and energy in it to make it work.