Your wife is also likely to view whatever you try to do to improve the marriage, including the suggestions in the book, as manipulation. So, it may just make her mad if she knew you have the book. All of a sudden, trying to impress/woo her is "manipulation", but it wasn't manipulation, somehow, when the two of you were first dating.
M: 33, W: 30 @BD M 7, T 10 BD: Early Dec W left: Late Dec W got stuff: Late Jan W sent S papers: Mid Feb OM cnfrmd: Late Feb
Pain can yield tremendous growth OR everlasting sadness and bitterness.