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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