Interesting viewpoint on how taking care of ourselves, and establishing our core principles--then sticking to them, can make us better able to function in a devoted, healthy relationship.
However, as with all other "self-help" books, the principles are the same, the toppings are just different, and the generalizability of the concepts not terribly... generalizable. The author asserts too many "this will work for you" accompanied by anecdotes; he should be on the home shopper's network.
This may work for some people, but I found it a bit confusing (how do you establish your principles that are unalterable? If men never function in a "feminine" manner in their relationships, how is a book read by one man going to suddenly change that?