Self esteem = women are so convinced of their own importance that they think they should be allowed to engage in extramarital affairs if they feel like it

Agency = women have always wanted to have affairs but didn't do it until it become easier/accepted as 'normal' by other women

Yes, you could argue whether these really are self esteem and agency, but it isn't unusual for women to mistake values for their "near enemies", a Buddhist concept that fits well.