Oppressive societies interfere with the innate, natural relationships that we expect and look for when we are born. They also try to define what relationships we have. It's difficult to think about a real relationship with someone instead of the societal forms we are presented with, or the alternative anti-establishment forms that spring up in reaction. Ideally, any relationship between two people would be created by their minds and agreements and not have to resemble any other relationship that has ever existed.