O merciful Lord God, who in the beginning didst take Eve out of the side of Adam and didst give her to him as a helpmate: grant me grace to live worthy of the honorable estate of matrimony to which Thou hast called me, that I may love my husband with a pure and chaste love, acknowledging him as my head, and truly reverencing and obeying him in all good things; that thereby I may please him, and live with him in all Christian serenity.
Keep me from all worldliness and vanity. Help me, O Lord, that I may, under him, prudently and discreetly guide and govern his household.
Let no fault of mine aggravate any sins by which he may be especially tempted; enable me to soothe him in perplexity, to cheer him in difficulty, to refresh him in weariness, and, as far as may be, to advise him in doubt.
Give me understanding so to fulfill my part in the education of our children, that they may be our joy in this world and our glory in the next.
Grant that our perfect union here may be the beginning of the still more perfect and blissful union hereafter in Thy kingdom; and this I pray through Jesus Christ our Lord. Amen.
-from Catholic Online