Lots of people are pushing marriage on young women. For those with less than a college degree, the National Campaign Against Teen and Unplanned Pregnancy and the National Marriage Project are promoting marriage so women won't be poor (mothers).* And for those with elite educations, a Princeton alumna says young women should find a husband before graduation so they won't be bored by a non-Ivy League dimwit for the rest of their lives.
(All this marriage promotion shouldn't be confused with marriage rights promotion. Should it?)
Marriage markets are very complicated. People can marry (and divorce) anyone they want whenever they want (subject to legal restrictions), or not. People can move to marry, or marry and then move. They can marry up, down, sideways, or internationally. After divorce, they can repeat the process, with variation.
With the economy the way it is and sequestration threatening the jobs of government bureaucrats and the social scientists who depend on them, demographers are delighted by this complexity, since it assures a steady stream of unanswered questions to generate demand for our profession (another good reason to repeal DOMA).
Anyway, some information about marriage and education: Take all the people ages under age 50 who told the American Community Survey in 2011 that they got (heterogamously) married for the first time in 2011. Break them down by education and sex, and look at the education of the people they married.