Self-centredness of strong marriages?

Supposedly Christian responses to marriage breakdown may have majored too much on trying to help people build and sustain relationships without giving them the outward-looking focus of serving God. In so doing we are buying unwittingly into the spirit of the age; we appear to accept much of the implicity relational primacy of our culture and just try to show our readers how to do it better than the world outside. Instead the whole paradigm needs to be challenged.
C. Ash, Marriage, p. 129