Most people don't get married planning to divorce, but the research suggests so much of what they do before they wed sadly leads them to that place.
Part of the reason might be that, as a culture, we're often more enamored with the wedding than the actual marriage. A colleague of mine once worked in a church office. He regularly encountered heartbroken brides-to-be who made the mistake of booking the reception hall before the sanctuary, only to discover the church was already taken. When the pastor gently suggested to one couple that their first priority should be the spiritual, the exasperated young woman replied, "I know, but the party is the fun part."
I don't think this woman is alone. On our way to marriage many of us inadvertently stumble into habits and situations that will sabotage our futures – and sometimes before we've even met our future spouse!