In social psychology, an interpersonal relation (or interpersonal relationship) describes a social association, connection, or affiliation between two or more persons. It overlaps significantly with the concept of social relations, which are the fundamental unit of analysis within the social sciences. Relations vary in degrees of intimacy, self-disclosure, duration, reciprocity, and power distribution. The main themes or trends of the interpersonal relations are: family, kinship, friendship, love, marriage, business, employment, clubs, neighborhoods, ethical values, support and solidarity. Interpersonal relations may be regulated by law, custom, or mutual agreement, and form the basis of social groups and societies. They appear when people communicate or act with each other within specific social contexts, and they thrive on equitable and reciprocal compromises.
Interdisciplinary analysis of relationships draws heavily upon the other social sciences, including, but not limited to: anthropology, linguistics, sociology, economics, political science, communication, mathematics, social work, communication, and cultural studies. This scientific analysis had evolved during the 1990s and has become "relationship science", through the researches of Ellen Berscheid and Elaine Hatfield. This interdisciplinary science attempts to provide evidence-based conclusions through the use of data analysis.
Types
Intimate relationships
Romantic relationships generally
Romantic relationships have been defined in countless ways, by writers, philosophers, religions, scientists, and in the modern day, relationship counselors. Two popular definitions of love are Sternberg's Triangular Theory of Love and Fisher's theory of love. Sternberg defines love in terms of intimacy, passion, and commitment, which he claims exist in varying levels in different romantic relationships. Fisher defines love as composed of three stages: attraction, romantic love, and attachment. Romantic relationships may exist between two people of any gender, or among a group of people (see polyamory).
Romance
While many individuals recognize the single defining quality of a romantic relationship as the presence of love, it is impossible for romantic relationships to survive without the component of interpersonal communication. Within romantic relationships, love is therefore equally difficult to define. Hazan and Shaver define love, using Ainsworth's attachment theory, as comprising proximity, emotional support, self-exploration, and separation distress when parted from the loved one. Other components commonly agreed to be necessary for love are physical attraction, similarity, reciprocity, and self-disclosure.
Life stages
Early adolescent relationships are characterized by companionship, reciprocity, and sexual experiences. As emerging adults mature, they begin to develop attachment and caring qualities in their relationships, including love, bonding, security, and support for partners. Earlier relationships also tend to be shorter and exhibit greater involvement with social networks. Later relationships are often marked by shrinking social networks, as the couple dedicates more time to each other than to associates. Later relationships also tend to exhibit higher levels of commitment.
Most psychologists and relationship counselors predict a decline of intimacy and passion over time, replaced by a greater emphasis on companionate love (differing from adolescent companionate love in the caring, committed, and partner-focused qualities). However, couple studies have found no decline in intimacy nor in the importance of sex, intimacy, and passionate love to those in longer or later-life relationships. Older people tend to be more satisfied in their relationships, but face greater barriers to entering new relationships than do younger or middle-aged people. Older women in particular face social, demographic, and personal barriers; men aged 65 and older are nearly twice as likely as women to be married, and widowers are nearly three times as likely to be dating 18 months following their partner's loss compared to widows.