Hello, I haven't read that book. If this guy has BPD, you will need to be careful applying generic relationship advice from books. The game changes when one of the people in a relationship has a serious mental illness, like BPD. We have a book review forum here, you might want to read some of our book reviews, or the articles posted here to see if those are helpful. At least it might point you in the direction of some other resources to read on your own.
That said, what you posted about the book you read makes
some sense. The basic message seemes to be "live an independent life" and don't become too tangled up in organizing your life to please a man. That's generally good advice and consistent with what we do here.
Another good place for information is the Lessons--there is a link on the right side of this page.
Take a look around and let us know if you have questions.