Though occasionally mature people can agree that they've grown apart and need to go in separate directions, and occasionally there are couples who bring out the worst in each other and really need to separate, for the most part divorcing couples are fueled by anger, projection, and blame.
Divorce brings out our strongest feelings of anger and rage.
What's interesting is that the rage feels good. It's righteous indignation. More than twice as many children of divorce compared to those from intact families will see a mental health professional in their later lives. In a national sample, men and women who were 16 or younger when their parents divorced reported significantly higher divorce rates, more work-related problems, and higher levels of emotional distress than those who grew up in intact families. A great deal of the reason why divorce is so difficult on children is that parents are so caught up in their own needs in this intensely emotional process that they are no longer able to function effectively as individual parents, to say nothing of the effect of the breakup of the home on the children.