Theories such a exchange and can be applied to the ending of relationships. If a relationship is not viewed as favourable in terms or regarded as then it will ultimately end. If costs and change over time the the couple might breakup.
Research has come up with a number of factors which make it less likely that the relationship will succeed such as:
couples, especially if they become at a young age
socio-economic groups
educational levels
Different backgrounds
Large number of before marriage
Experiencing parents getting at young age

(1990) suggest that couples use relationship-enhancing attribution patterns, while couples use distress maintaining attribution patterns.
In a happy relationship the partners behaviour will be viewed more than when in an unhappy relationship.

(1990), perceptions of others relationships appear to be affected by how we view our own relationship. If we are currently in a happy relationship then we are likely to view our relationship when compared to others. In contrast if we are in an unhappy relationship then we are likely to be of other happy relationships.

The hypothesis might also explain the gender differences that have been found in the perceptions of couples in problematic relationships. generally report more problems in relationships than do. dissatisfaction is seen as a better predictor of relationship dissolution than dissatisfaction. Is this because are more sensitive to relationship problems or do the have different attributional patterns?