Visit d nearest marriage registery or law court and try 2 dig into case files relating 2 divorces based on marital infidelity,u wll find out that my observation above is not far from d truth or better still try to follow media publication of cases of infidelity for a period of 6 months and afterwards come back here 2 either support or counter my observation.

pri3stess:
Please, until you provide me with some statistical and scientific data on why the groups you listed above cheat, I'm still going to go with what I said in my first comment.