Here is a version of the Catholic nuptial blessing; I particularly like the last part. She could alter it to suit her preferences; for instance, she want to make it a blessing on the bride and the groom instead of concentrating on the bride:
*Holy Father, creator of the universe,
maker of man and woman in your own likeness,
source of blessing for married life,
we humbly pray to you for this woman
who today is united with her husband in this sacrament of marriage.
May your fullest blessing come upon her and her husband
so that they may together rejoice in your gift of married love
(and enrich your Church with their children).
Lord, may they both praise you when they are happy
and turn to you in their sorrows.
May they be glad that you help them in their work
and know that you are with them in their need.
May they pray to you in the community of the Church,
and be your witnesses in the world.
May they reach old age in the company of their friends,
and come at last to the kingdom of heaven.
We ask this through Christ our Lord.*
For instance, it could be shortened to read:
*Holy Father, creator of the universe,
maker of man and woman in your own likeness,
source of blessing for married life,
we humbly pray to you for these two, our beloved friends,
so that they may together rejoice in your gift of married love
and enrich your Church with their family.
Lord, may they both praise you when they are happy
and turn to you in their sorrows.
May they be glad that you help them in their work
and know that you are with them in their need.
May they pray to you in the community of the Church,
and be your witnesses in the world.
May they reach old age in the company of their friends,
and come at last to the kingdom of heaven.
We ask this through Christ our Lord.*
