Abstract-This study aims to determine what factors are most underlying the divorce petition in Sidoarjo. As the local Religious Court informs, the number of divorcees is higher than "Talak" divorce both in 2016 and 2017. In addition, this study also wants to correlate between divorce and the happiness of women who filed for divorce. This article uses social methods with interactional approach. The analysis done qualitatively The results of the interviews finally showed that the presence of third parties became the most factor for women to be separated from their husbands. This third party can be family and another lover.