[edit: reform statement] In case the above is meant seriously:
"Researchers have identified the most common reasons people give for their divorces. A recent national survey79 found that the most common reason given for divorce was lack of commitment (73% said this was a major reason). Other significant reasons included too much arguing (56%), infidelity (55%), marrying too young (46%), unrealistic expectations (45%), lack of equality in the relationship (44%), lack of preparation for marriage (41%), and abuse (29%). (People often give more than one reason, so the percentages add up to more than 100%.)"
http://www.divorce.usu.edu/files/uploads/Lesson3.pdf