Living-In-Together Relationship or in other words, "Cohabiting Relationship" is a trend nowadays in different parts of the world. But base on my belief, it is absolutely against my principle to live together with my partner and raising our kids or children without the blessing of the church and my family.
Love and Marriage should not be taken lightly. They shouldn't be separated in any way. The partners may have reasons to be living together before marrying but it is not reason enough not to marry.