Samantha and her friend Felicity are extremely close, and are primarily concerned with meeting each other's needs. When Felicity was broke, for example, Samantha let her stay at her apartment for several months without charging rent. When Samantha was in the hospital for a knee surgery, Felicity brought her movies, food, and other gifts nearly every day. Social psychologists would say that Samantha and Felicity have a(n) relationship.