I thought there might be outside research on such things, or that I might find statistics or lists or examples. From a 2003 study on the reasons people divorce (People's Reasons for Divorcing:) I've brought this chart. You can click to see it a bit larger.
"Sign of the times" is a lemming-like divorce. Everybody's doing it.
There is a blog that collects statistical reports: Divorce Statistics and Studies
Women: Five Reasons Your Divorce Is Your Fault
Women initiate between 66% and 90% of all divorces. You might think that's because men do things to make marriage untenable—like cheat or hit them—but I hear about women divorcing because he didn't help with the baby, he was emotionally unavailable, or because they grew apart. Countless women tell me they divorced because their husbands weren't capable of meeting their needs.Delaying divorce to save marriages (2011)When the women I work with learn intimacy skills, it changes the way they see a previous marriage. Some women tell me that they realize they were married to a good guy, but divorced because they lacked the skills to have a happy relationship. Sometimes it causes them enormous grief.
Research over the past decade has shown that a major share of divorces (50 to 66 percent, depending on the study) occur between couples who had average happiness and low levels of conflict in the years before the divorce.CAN WE REALLY STEM THE TIDE OF DIVORCE?Contrary to popular belief, only a minority of divorcing couples experience high conflict and abuse during their marriages. Most divorces occur with couples who have drifted apart and handle everyday disagreements poorly. It is these “average” divorces that research shows are the most harmful to children.