yeshivish – No offense meant, but I’m pretty sure that’s absolutely ridiculous. Are you suggesting that unsuccessful marriages occur because the partners knew too MUCH about each other going in, and had they only decided to marry each other earlier in the dating process, they would have much more successful marriages??
Although there may be a correlation between longer dating periods and divorce rate, I find it hard to believe that it is for the reason you have stated. The only conclusion one can make based on such a statistic (if it exists) is that people who date for a longer time are more WILLING to divorce. It doesn’t even prove that people who date for a shorter time have more successful marriages or are happier together – there are plenty of couples who are unhappy together but don’t divorce.