gutwrenching, VERY cool idea to do this. I have a few recommendations.

1. Feeling Good Together: The Secret To Making Troubled Relationships Work by David D. Burns, MD
The back cover says, "In it, you'll learn how to stop pointing fingers at everyone else and start looking at yourself; how to pinpoint the exact cause of the problem with any person you're not getting along with; and how to solve virtually any kind of relationship conflict almost instantly."

2. The Lost Art of Listening: How Learning To Listen Can Improve Relationships by Michael P. Nichols, PhD
The back cover says, "Experienced therapist Mike Nichols provides vivid examples, easy-to-learn techniques, and practical exercises for becoming a better listener--and making yourself heard and understood, even in difficult situations."

3. The Birth Order Book: Why You Are the Way You Are by Dr. Kevin Leman
The back cover says, "Birth order powerfully influences who you are, whom you marry, the job you choose, and the kind of parent you are. [The author's book] will help you understand yourself, get along better with others, overcome ingrained tendencies you never thought you could get rid of, and be more successful in the workplace." (VERY good book. I was fascinated by what it said!)

4. The Angry Smile: The Psychology of Passive-aggressive Behavior in Families, Schools, and Workplaces by Long, Long, and Whitson
This is a great book to read if you deal with a passive-aggressive person. It is an incredibly enlightening read, and it has great situations/scenarios that are very illustrative. It also made me aware of things I do that may come across as or actually be passive aggressive. I highly recommend it!