It's pretty amusing - I've found references to and quotes from several interviews where Kawamori observes that monogamy is a relatively recent development in the history of mankind, with the slight implication that humanity in the Macross universe might be polygamous!

To be absolutely honest, given something he revealed about the ending to "The Wings of Goodbye", not to mention what he managed to do with regards to the triangle in Frontier with that film (hint: you need to watch both the series AND the movies to fully appreciate it), I'd argue that Kawamori was just teasing us so that he could keep the end of the triangle under wraps.

At any rate, I'm just finding this all hilarious. ^^