From the Mission Statement....
What is a “healthy marriage?"
There are at least two characteristics that all healthy marriages have in common. First, they are mutually enriching, and second, both spouses have a deep respect for each other.
It is a mutually satisfying relationship that is beneficial to the husband, wife and children (if present).
It is a relationship that is committed to ongoing growth, the use of effective communication skills and the use of successful conflict management skills.
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I guess the homo's would argue that one man could be the husband and another man could be "the wife", but they would be fooling themselves.