interpersonal relationship

relationship between persons, relations between individuals

relationships between people

In the contexts of sociology and of popular culture, the concept of interpersonal relationships involves social associations, connections, or affiliations between two or more people. Such persons may  interact overtly, covertly, face-to-face; or may remain effectively unknown to each other (as in a virtual community whose members maintain anonymity and do not socialize outside of a  chat-room).
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Companionship the faculty possessed by most truly domesticated animals. They are social creatures and have a great need for the companionship of [more]Interpersonal relationship - Community and Resources