This makes perfect sense.
Also, a gay man could marry a lesbian. It might make them both very happy.
One of the most famous (or notorious) lesbians of my generation was Andrea Dworkin. She lived for 31 years with "the love of her life" John Stoltenberg, the last 7 years they were actually, formally married --- and faithful --- yet she never sopped calling herself a lesbian, and he always said he was a gay man.
Strange, all right. Strange.
But hey, at least they were straight about marriage!