<Li> Intimate relationships <Ul> <Li> Lovers </Li> <Li> Significant other </Li> <Li> Spouse </Li> </Ul> </Li> <Ul> <Li> Lovers </Li> <Li> Significant other </Li> <Li> Spouse </Li> </Ul> <Li> Egalitarian and Platonic friendship </Li> <Li> Enemy or frenemy </Li>

When should be a society seen as a system of personal interrelationship