There is good news on the marriage front. A new U.S. Census report shows that the number of long lasting marriages is up. People are staying together longer. The Washington Post studied the census report and offered some analysis. “Three in four couples who married after 1990 celebrated a 10-year anniversary, according to census statistics reported Wednesday. That was a rise of three percentage points compared with couples who married in the early 1980s, when the nation’s divorce rate was …