Perhaps, but one must be careful not to inject modern cultural aspects in to historical situations, times, and places. "Gay" is a relatively modern identify concept. SSSB is not.<quoted text>
I'm sure that there have always been a percentage of monogamous gay couples,
Both SSSB, and prostitution has always existed, although I think the latter is far more prevelant, and has greater historical depth and practiced in far more times and places. Monotheism may have been but one factor in both behaviors being marginalized.just as there have always been gay people: Monotheism drove gay people underground, just like it drove prostitution underground.