Steinberg 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.
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.
An interpersonal relationship is a strong, deep, or close association or acquaintance between two or more people that may range in duration from brief to enduring.
LGBT, on the other hand, face unique challenges in establishing and maintaining intimate relationships.Romantic relationships may exist between two people of any gender, or among a group of people (see polyamory).The single defining quality of a romantic relationship is the presence of love. 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.Interpersonal relationships are formed in the context of social, cultural and other influences.The context can vary from family or kinship relations, friendship, marriage, relations with associates, work, clubs, neighborhoods, and places of worship.