Thousands of same-sex relationships hang in the balance. The Supreme Court announced Friday that they will be taking up two key gay-marriage cases. The justices will be looking at the constitutionality of the federal Defense of Marriage Act (DOMA), which defines marriage as between a man and a woman, as well as California’s Proposition 8, a voter initiative that banned gay marriage in the state less than six months after it was legalized by the state's supreme court. Alas, a decision won't be likely until June.