If you are curious why fewer and fewer Americans are getting married, here are a few articles to get you going with that research.
http://www.npr.org/2011/12/14/143660764/when-it-comes-to-marriage-many-more-say-i-dont
http://www.washingtonpost.com/local/married-couples-at-a-record-low/2011/12/13/gIQAnJyYsO_story.html?tid=pm_pop
http://www.kgw.com/thesquare/question/Is-marriage--135628428.html
http://www.npr.org/2011/12/14/143660764/when-it-comes-to-marriage-many-more-say-i-dont
http://www.washingtonpost.com/local/married-couples-at-a-record-low/2011/12/13/gIQAnJyYsO_story.html?tid=pm_pop
http://www.kgw.com/thesquare/question/Is-marriage--135628428.html