"Emotional Intelligence" - Daniel Goleman It doesn't discuss marriage or even relationships. But it does go into the science behind emotions. Having read this book helped me understand my emotions through my whole ordeal. An understanding that was greatly helpful when I was trying to control them.
Here is a thread that was started many years ago with suggested reading material for posters on the Newcomers Forum. If you have book recommendations and would like to share them w/posters, by all means let's continue adding the recommendations here.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.