The survey reports:

A total of 1743 men and women who had experienced a one-night stand were asked to rate both their positive and negative feelings the following morning. 80% per cent of men had overall positive feelings about the experience compared to 54 % of women. While men reported feeling more content, sexually satisfied and confident after meaningless sex, women were more likely to worry about feeling "used" and "letting themselves down".

I don't understand one thing how come same act makes men happy and women frustrated. Is this due to different perception of the different sexes or just the way women tend to expect more emotional relation after the sex. Or guys just want to have sex for sex only and gals want sex for love?