Since 1990, the divorce rate for Americans over the age of 50 has doubled, and the rate for Americans over age 65 is even a higher, according to the study by the National Center for Family & Marriage at Bowling Green State University.
The marital status for aging adults over 65 of being divorced rather than widowed is increasing. Americans are living longer and once the children are gone they are starting to see a life better lived apart than together. In addition divorce has also become more socially acceptable. More recently, Wu and Schimmele suggested that broad cultural shifts in the meanings of marriage and divorce influence all generations, including older adults. Specifically, the weakening norm of marriage as a lifelong institution coupled with a heightened emphasis on individual fulfillment and satisfaction through marriage may contribute to an increase in divorce among older adults, including those in long-term first marriages.
for more information on the study here is a link: National Center Family & Marriage Research