The state Supreme Court's 4-3 decision Friday that same-sex couples have the right to marry swept through the state with the force of a cultural tidal wave. While lead plaintiff Beth Kerrigan and her partner -- soon to be wife -- embraced and sobbed after learning of the ruling, opponents vowed to pursue a long and complicated route to change the constitution to ban gay marriage. The Supreme Court released its historic ruling at 11:30 a.m. Citing the equal protection clause of the state constitution, the justices ruled that civil unions were discriminatory and that the state's "understanding of marriage...