In her most provocative comments, the ex-Mrs. Gingrich said Newt sought an "open marriage" arrangement so he could have a mistress and a wife.
She said when Gingrich admitted to a six-year affair with a Congressional aide, he asked her if she would share him with the other woman, Callista, who is now married to Gingrich.
"And I just stared at him and he said, 'Callista doesn't care what I do,'" Marianne Gingrich told ABC News. "He wanted an open marriage and I refused."
Marianne described her "shock" at Gingrich's behavior, including how she says she learned he conducted his affair with Callista "in my bedroom in our apartment in Washington."
"He always called me at night," she recalled, "and always ended with 'I love you.' Well, she was listening."
All this happened, she said, during the same time Gingrich condemned President Bill Clinton for his lack of moral leadership.
Perhaps the former speaker was projecting when he named secular college professors and radical Islamists—two demographics that bear the polyamorous stereotype—as leading to America's downfall?
Last time he was confronted by his history of mid-stream horse-switching, Gingrich said, "There's no question at times of my life, partially driven by how passionately I felt about this country, that I worked far too hard and things happened in my life that were not appropriate."