I don't get dual relationships (duality)

[Lord Pixel]

I think the word choice is being way too read into. Of course people make compromise and sacrifice in relations for the benefit of the person they are with. Does this really have to be stated? But God forbid someone has standards and wants someone to be a good parent and other positive traits. And I highly doubt there is a human on earth who enters into a relationship with no expectations. That's not real. You go into a relationship expecting not to be intentionally hurt, expecting some kind of physical or emotional closeness, expecting kids or no kids, expecting whatever it is you are expecting. Better to be upfront than to fake like you're above it all.