“For partners who marry across class lines, however, money isn’t just something to fight about … I found that the financial stability of the spouses’ childhoods shaped their marriages in many ways, contributing to clashes about leisure time, home maintenance and even how to talk through their feelings.” In WaPo, Duke’s Jessi Streib provides some insight into the challenges of marrying outside your class. (I met my wife in high school. So I literally married someone in my class.)