Marriage is the lightning rod that absorbs anxiety and stress from all other sources, past and present. When marriage has a firm foundation of solid friendship and mutual respect, it can tolerate a fair amount of raw emotion. A good fight can clear the air, and it's nice to know we can survive conflict and even learn from it. Many couples, however, get trapped in endless rounds of fighting and blaming that they don't know how to get out of. When fights go unchecked and unrepaired, they can eventually erode love and respect, which are the bedrock of any successful relationship.