By KAY S. HYMOWITZ
Is marriage in the midst of the social equivalent of the financial meltdown? The first inkling -- the Bear Stearns moment, if you will -- came almost a year ago when the National Enquirer reported that John Edwards appeared to be the father of a love child. The full-scale crisis hit in the past weeks with les affaires Ensign, Sanford and (at least according to rumor) reality-show star Jon Gosselin. Adding to the sense of a Great Marital Depression was a much discussed article in the Atlantic by performer and writer Sandra Tsing Loh about her own infidelity and ultimate separation from her husband, titled "Let's Call the Whole Thing Off."