Couples who live together are gambling and losing in 85 percent of the cases. Many believe the myth that they are in a “trial marriage.” Actually it is more like a “trial divorce,” in which more than eight out of ten couples will break up either before the wedding or afterwards in divorce. First, about 45 percent of those who begin cohabiting, do not marry. Those who undergo “premarital divorce” often discover it is as painful as the real thing. Another 5-10 percent continue living together and do not marry. These two trends are the major reason the marriage rate has plunged 50 percent since 1970. Couples who cohabit are likely to find that it is a paultry substitute for the real thing, marriage.

Of the 45 percent or so who do marry after living together, they are 50 percent more likely to divorce than those who remained separate before the wedding. So instead of 22 of the 45 couples divorcing (the 50 percent divorce rate) about 33 will divorce. That leaves just 12 couples who have begun their relationship with cohabitation who end up with a marriage lasting 10 years.