Other components commonly agreed to be necessary for love are physical attraction, similarity, An intimate but non-romantic relationship is known as a platonic relationship.
Early adolescent relationships are characterized by companionship, reciprocity, and sexual experiences.
The scientific study of relationships evolved during the 1990s and came to be referred to as 'relationship science', 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.
Insecure ambivalent infants are highly distressed by separation, but continue to be distressed upon the parent’s return; these infants also explore little and display fear even when the parent is present.
Some psychologists have suggested a fourth attachment style, disorganized, so called because the infants’ behavior appeared disorganized or disoriented.
Romantic relationships may exist between two people of any gender, or among a group of people (see polyamory).
Freud’s ideas influenced thought on parent-child relationships for decades.The strain of internalized homo-negativity and of presenting themselves in line with socially acceptable gender norms can reduce the satisfaction and emotional and health benefits they experience in their relationships.It is also still considered by many to occupy a place of greater importance among family and social structures. Many older people choose not to marry because of their age, financial and family obligations.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.