A “gray divorce” refers to the phenomenon of older adults, typically aged 50 and above, ending their marriages. Many wonder why a couple that has stayed together for so long would only realize ... Grey divorce refers to the rising trend of divorces among couples aged 50 and older, often after long marriages. A “gray divorce” refers to the phenomenon of older adults, typically aged 50 and above, ending their marriages. Many wonder why a couple that has stayed together for so long would only realize ... Grey divorce, a rising trend among couples over 50, often stems from empty nest syndrome, infidelity, and financial disagreements. (Freepik) Another common factor is the empty nest syndrome.