Changes

* Primary and Secondary relationships are most often found in polyamorous relationships involving three people where one person is the Primary participant and another is the Secondary. The different individuals usually fulfill different needs for each other and for the third person involved

* Primary and Secondary relationships are most often found in polyamorous relationships involving three people where one person is the Primary participant and another is the Secondary. The different individuals usually fulfill different needs for each other and for the third person involved

* Various relationships between multiple people or sets of people, named by their configurations (A relationship of three people would be called a triad, a relationship between two different sets of couples a quad, and so on.)

* Various relationships between multiple people or sets of people, named by their configurations (A relationship of three people would be called a triad, a relationship between two different sets of couples a quad, and so on.)

* Polygamy (polygyny and polyandry), in which one person marries several spouses

* [[Polygamy]] (polygyny and polyandry), in which one person marries several spouses

* Group relationships and group marriage, in which all consider themselves associated to one another, popularized by Robert Heinlein in many of his works

* Group relationships and group marriage, in which all consider themselves associated to one another, popularized by Robert Heinlein in many of his works

* Networks of interconnecting relationships, where a particular person may have relationships of varying degrees of importance with various people.

* Networks of interconnecting relationships, where a particular person may have relationships of varying degrees of importance with various people.