Coupling doesn't always have to do with sex ... Two people holding each other up like flying buttresses. Two people depending on each other and babying each other and defending each other against the world outside. Sometimes it was worth all the disadvantages of marriage just to have that: one friend in an indifferent world.
Erica JongNot everybody has to be a parent. In fact, in an overpopulated world where our resources are shrinking, it would be wonderful if people who didn't want children felt free to say so. In the 1970s, there was more tolerance for the idea that not everybody needs to be a biological parent.
Erica Jong