Thank you for posting that link. It reaffirms a long-held personal belief that human behavior can rarely be distilled down to "yes/no, black/white, on/off, one/zero."
Though I don't recall the exact text(s), I'm aware of several that argue the prevailing notion of either/or sexuality is a recent construct. One researcher examined letters and personal accounts of life in pioneer America and found it filled with ambiguous(by current standards) and unflinching accounts of same-sex relationships. Even the accounts of Abraham Lincoln's life include references to several instances of male companionship which would be scandalous in today's quick-to-label-and-condemn mentality.
So, to sum it all up:
"People are complicated."
"His voice rose under the black smoke before the burning wreckage of the island; and infected by that emotion, the other little boys began to shake and sob too. And in the middle of them....Ralph wept for the end of innocence, the darkness of man’s heart…”. -----William Golding