The "sanctity" of marriage no longer exists. 50% of the people get divorced. It's an even higher percentage of marriages after that.
50% percent of first marriages, 67% of second and 74% of third marriages end in divorce. (divorcerate.org)
Who cares who wants to marry who? Who cares if Jim wants to blow Bob while Bob gets plowed in the arse from Steve all while Ted watches in the corner jerking off.