The document outlines several theories and stages of interpersonal relationships. It discusses relationship stages including contact, involvement, intimacy, deterioration, repair, and dissolution. It also describes relationship theories such as relationship rules theory, which defines rules for different relationship types like friendship and family, and social exchange theory, where relationships are based on whether rewards outweigh costs. As an assignment, students are asked to give a real-life example of a relationship stage and apply one of the relationship theories.