The soon to be ex-wife of South Carolina Governor Mark “Hiking the Appalachian Trail” Sanford says that he refused to promise fidelity in his wedding vows:

South Carolina first lady Jenny Sanford recalls how she made the “leap of faith” to marry husband Gov. Mark Sanford even though the groom refused to promise to be faithful, insisting that the clause be removed from their wedding vows.

“It bothered me to some extent, but … we were very young, we were in love,” she said in an exclusive interview with Barbara Walters to air on “20/20” Friday. “I questioned it, but I got past it … along with other doubts that I had.”

Sanford and her marriage were thrust into the national spotlight in June 2009 when her husband admitted that he had been secretly visiting his longtime lover in Argentina instead of hiking the Appalachian Trail, as he had told his staff.

Imagine that.

On the brighter side, I imagine that he learned how to Tango.