It is not always so understandable to the other spouse - or to the couple's children. Sometimes the decision to divorce is mutual. Both spouses decide the marriage is not working and they come to a divorce settlement amicably. They and their children begin to rebuild a different life, keeping disruptions to a minimum. Such divorces are rare, and even so the children will experience losses and change.
Most divorces are the result of a complicated process between two people.
Each divorce is unique, just as each marriage is unique. It is impossible to list all the reasons why marriages which start out with so much promise end with so much pain. It is the inability of a couple to communicate, compromise or change on these issues which finally results in the decision that they can no longer remain married. All people differ from each other psychologically. They have different personalities.