It is inevitable that at some point relationships, especially marital relationships, will run into difficulties and problems will rear their ugly heads. How one perceives his spouse, how she respects him and how he expresses love to her are essential in rebuilding those fallen walls.
In my experience as a counsellor, having worked with the most severe issues imaginable in marriage, I have compiled this list of books that I have personally reviewed and recommend as essential material and self-help. No marriage is impossible, there is only and impossible attitude. All things are possible to them that believe, so our problem now becomes one of trust/faith.