Argentina Sees Its 1st Gay Divorce Cheating reportedly the cause of the female couple's split By Kate Seamons, Newser Staff Posted Jun 16, 2011 8:39 AM CDT Updated Jun 16, 2011 9:09 AM CDT 9 comments Comments Cheating reportedly the cause of the female couple's split. (?Mike Licht, NotionsCapital.com) (Newser) – With one milestone comes another: Argentina legalized gay marriage in July 2010; 11 months later, it's seeing its first gay divorce. A LGBT groups says the divorce involves a female couple who married on April 20. The 46-year-old and 25-year-old are splitting due to an alleged infidelity, says the group's president. Argentina is the first Latin American country to legalize gay marriage nationwide, notes the AP.