I’ve written before about the differences between same-sex unions and opposite sex married couples.

Here’s a post from Canon and Culture on the same topic by social scientist Glenn Stanton.

He finds two differences.

First, instability:

[T]he research is strong and numerous enough that a recent and very provocative Atlantic cover story on what straights could learn from gay marriage couldn’t ignore it. Liza Mundy, the article’s author, doesn’t appear to have a conservative bone in her body, yet she is fair and straight-up honest with the research on the nature of committed same-sex relationships.

[…]Mundy explains that studies have found “higher dissolution rates among same-sex couples” in Scandinavia – one of the world’s most gay-friendly cultures — than married heterosexual couples. This study, published in Demography, found that even though same-sex couples enter their legal unions at older ages — a marker related to greater relational stability – male same-sex marriages break up at twice the rate of heterosexual marriages.  And the break-up rate for lesbians? A stunning 77% higher  than the same-sex male unions! When controlling for possible confounding factors, the “risk of divorce for female partnerships actually is more than twice than that for male unions.”

[…]A study of two generations of British couples (one born 1958, the other 1970) in same-sex cohabiting, opposite-sex cohabiting and opposite-sex marriage relationships found the same-sex relationships dramatically more likely to break up than the opposite-sex cohabiting and married relationships.

According to that British study, only 25% of same-sex co-habitating couples are intact after  8 years. The stability number for married couples after 8 years is 82%. That’s a big difference.

But there’s more:

Other studies – conducted by celebrated lesbian scholars – find notable instability in lesbian homes, even those with children. The current National Longitudinal Lesbian Family Study (NLLFS) found “a significant difference” in family dissolution rates when comparing lesbian with mother/father headed families, 56% and 36% respectively. (p. 1201)

Another research study by two celebrated gay-friendly scholars, highlights a major comparative study between hetero and lesbian homes where, in the 5-year period of the study, 6 of the 14 lesbian mother-headed homes had broken up compared to only 5 of the 38 mom/dad headed homes. (p. 11) These scholars creatively explains that this stability imbalance is likely due to the “high standards lesbians bring to their intimate unions…” (p.12)

Ever heard of lesbian bed death?

And Mundy points something else predictable in lesbian relationships. In fact, its consistency has earned it a name in the LGBT community: lesbian bed death. Seriously.  This is the truth that sexual interest and frequency in many long-term lesbian relationships tends to decline considerably and even die over the years.

Usually, in relationships, men tend to be the ones who want more frequent sex. What happens when you have no aggressors and two gatekeepers? Lesbian bed death.

Next up, something common in male homosexual relationships: infidelity.

Stanton writes:

A noted 2010 study on non-monogamy in long-term gay relationships by two gay-affirming scholars — the Couples Study — observes in their report’s first sentence: “…non-monogamous relationships are very common in the gay community…” Their data showed that of the non-monogamous, long-term couples in their study, 42 percent made an arrangement for outside-sexual relationships within the first three months of the relationship’s beginning and by the end of the first year, that number increased to 49 percent. At the seventh anniversary mark, an additional 24 percent of gay couples adopted such agreements. So such agreements are increasingly made as these relationships grow longer.

The Atlantic piece is notes this as well; explaining that after the AIDS crisis, “gay male couples are more monogamous than they used to be, but not nearly to the same degree as other kinds of couples.” One study Mundy cites asked those in various relationships whether they had any agreed-upon rules permitting extra-curricular activities. The differences were astonishing. Only 4% of male/female couples had them compared to 40% of gay men in legally recognized unions and 49% in long-term cohabiting unions.

Another widely respected investigation, found that only a third of gay couples had monogamous agreements and truly honored them with no outside sex. In fact, it found that in the openly nonmonogamous gay relationships, the frequency of extra-dyadic sex from its start ranged from 2 to a whopping 2,500 separate incidents. The median was a remarkable 41.5 extracurricular incidents since the relationship’s beginning. Frequency in the last year was startling was well, ranging from 0 to 350 occurrences of outside sex, with a median of 8 incidences in the last twelve months. Even those who pledged true monogamy, the range was from 1 to 63 “slip-ups” with a median of 5. Five “slip-ups” are not slip-ups. The corresponding numbers for men in heterosexual marriages are microscopic in comparison.

So what does all this mean?

It means that if you are interested in a definition of marriage that involves stability and marital fidelity, then you shouldn’t be in favor of legalizing gay marriage. When you open up the term marriage to include relationships that seem to be very unstable and/or very unfaithful, you change the definition of marriage. Marriage means life-long married love. If we just turn around and call any association of adults “marriage”, then we are losing the distinctiveness of marriage in the process. Think about it. We did the same thing in the previous redefinition of marriage (no-fault divorce) which attacked the permanence of marriage. Marriage has a specific meaning and we should not be redefining it every few years for the benefit of selfish adults.