"When you fall in love in your twenties, you're swept away by all the passion.  However you often don't know who it is you're going to grow up to be.  And if the two of you grow up to be people who are merely different and simply not compatible as a married couple, it makes no sense to make the other person wrong and destroy what was once good."

This was told to me by a very wise woman who discovered this with her first husband.  He agreed and not only did they amicably divorce they have remained very good friends and successful business partners.  And because of the cooperation, mutual respect and not making each other wrong, their child has thrived much more than kids from many troubled in tact marriages.

To find out when the trouble begins, go to: Usable Insight - Why long term marriages end