One could argue that out of all the interpersonal cases that can contribute on the onset of a depressive disorder, the ambiance of a family has the most weight and impact on a depressed individual. In the case of spouses, the well being of one spouse will have a notable impact on the other spouse and on the welfare of their marriage. For example, in 30% of all marriage problems, there is one spouse that can be described as clinically depressed. The reason why a spouse might have a unipolar mood disorder could be due to their relationship being "characterized by friction, hostility, and a lack of affection" (Gotlib & Hammen, 1992).