A new survey by a dating website has found that there are big differences in how men and women view infidelity.
Elite Singles was launched in South Africa in April this year and is aimed at "predominantly affluent", educated men and women of between 30 and 55.
According to its survey, 43% of men were likely to cheat compared to only 30% of women.
Women, on the other hand, were found to cheat emotionally: 27% said they had fallen in love with someone outside a partnership, compared with only 12% of men.
Asked what motivated their infidelity, 55% of men struggled to single out a reason, such as wanting sex with someone else, boredom with the relationship, revenge or "another love".
A number of women admitted to revenge sex.
Just over a third of them said they cheated because they were bored in their relationship.
One in five respondents said they would forgive infidelity.