I just must warn you, that DB is the best book for working towards the reconciliation. This book just helps us to understand why we feel the way we feel and the psychology on building the bridges back home.
If you really analyze it, I guess it also explains why Michele's 180's work. Basically, we are trying to trigger the opposite reaction in our spouses to the threat of their relationship. Instead of the flight reaction, we are trying to trigger the cling reaction.