On the subject of infidelity it is hard to make any conclusions without stereotyping. There is no statistical data available and one can only guess that Iranians are the same as others. It is more acceptable for men to be adulterous than women and in fact adulterous women and their lovers are severely punished in Iran. Traditional males may regard such acts as contrary to their religious codes, but may and could practice polygamy or acquire concubines to comply with their faith. There are modern high profile Iranian females married to super rich Muslim men in North America who have accepted polygamy. There is very little information on the practice of temporary marriage or concubines outside Iran, but there are known cases of single and married man practicing it. However such practices are rare and socially unacceptable and very few people will openly admit to engaging in them. - See more at: http://www.iranchamber.com/culture/articles/codes_behavior.php#sthash.hme8yIUs.dpuf