This examination of vows may also assist us in appreciating some of the fundamental differences that there are between couples who live together in a vowed state and couples who enter trial marriages [2] and free unions. (faith.org.uk)
If all marriages were only trial marriages, or if vows were made for temporary periods, or with conditions attached, the infinite worth of the person would no longer be affirmed. (faith.org.uk)
The Pope describes g ay marriage as «pseudo-matrimony» and declared that «The various forms of the dissolution of matrimony today, like free unions, trial marriages... by people of the same - s 3x, are rather expressions of an anarchic freedom that wrongly passes for true freedom of man.» (religion.blogs.cnn.com)