@MentORPHEUS most animals don't breed in captivity, and for some reason women are terminating their offspring at an unprecedented rate. arguably there are almost no unwanted children, just unwanted adults.
@0xdada The birth rate isn't down due to abortion, it's down because people in industrialized countries don't need to have 8 children just so that 3 survive to adulthood. If you hate multigenerational welfare, why eliminate abortion and cause the number of unwanted children to explode?
Until I read that wiki page just now, I hadn't heard of Steinberg and his Triangle of Love theory. It does look like a useful paradigm especially in the attraction and initial stages of shorter-term relationships.