A new study suggested that women who had low self esteem were willing to work harder to keep hold of their man.

The researchers found that women who had low self esteem or who felt less desirable than their partners worked hard to keep their relationship alive. While women who viewed themselves as attractive spent less time in enhancing their relationship, women with low self esteem put more effort in ensuring that their partners did not stray away or become involved with other women
“These results represent women who feel that they have fewer desirable qualities than their partners attempting to make up for this imbalance by investing more time, effort and economic resources in their relationships”, lead researcher Dr Chris Bale said.
Source-Medindia