This paper endeavors to examine personal intimacy by way of comparative investigation of the confiding behaviors of married men and women in East Asian societies. I focus on comparing assortative marriage and pure relationships theories. Assortative marriage contends that similarity is a precondition to intimate disclosure, while pure relationship theory proposes equality to be a major determinant. Using the data from East Asian Social Survey collected in Taiwan, South Korea, Japan and China, this study finds that educational and age assortative mating do not facilitate confiding of husbands and wives. In contrast, power sharing in decision making produces consistent effects across four populations. Husbands’ contribution to housework has also favorable influence in Taiwan and Japan. This paper concludes that husbands and wives are more willing to talk their feelings, emotions or troubles out when they practice gender equality at home.