Unfortunately this woman did not know of her options at the time. The Roman Catholic Church does not like to admit it, but there are other Catholic denominations (i.e. the Ecumenical Catholic Church, the Liberal Catholic Church, the Old Catholic Church) with entirely valid sacraments and in some cases even open communion for all those who wish to partake of it. Most of them will also give the Sacrament of Matrimony to any couple regardless of gender, and in areas where this is not legal they will perform same-sex blessing ceremonies.