Psychologists have suggested that all humans have a basic, motivational drive to form and maintain caring interpersonal relationships. According to this view, people need both stable relationships and satisfying interactions with the people in those relationships. If either of these two ingredients is missing, people will begin to feel anxious, lonely, depressed, and unhappy.

Continuation - This stage follows a mutual commitment to a long term friendship, romantic relationship, or marriage. It is generally a long, relative stable period. Nevertheless, continued growth and development will occur during this time. Mutual trust is important for sustaining the relationship.

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