According to the article, i understood that relationships can be easily distinguished into personal or social and voluntary or involuntary and there are stages of relational interaction in which relationships come together (initiating, experimenting, intensifying, integrating, and bonding) and come apart (differentiating, circumscribing, stagnating, avoiding, and terminating).l think after i read this article, i learned how to build up a positive relationships by chatting with others as i recognize what is the relationships between costs and rewards