A DECADE AGO, the Catholic Church tried to annul my marriage. My former husband, Joseph Kennedy II, wanted to remarry and stay in the good graces of the church; to do so, he needed the ruling. Despite 12 years of marriage and two children, a tribunal of the Archdiocese of Boston decided that our union was never valid; nor were our children the offspring of a true Catholic marriage. I did not agree with the archdiocese's decision. I was sure our marriage, though failed, had been real, and I appealed to the Vatican. Finally, this May, I learned that Rome...