1. Gingrich started dating Jackie, who was to be his first wife, when he was a 16 year old in high school, she was his geometry teacher (you can't make this stuff up), 7 to 9 years his senior. They married in 1962. She's the one he, allegedly, famously, served divorce papers while she was in the hospital recovering from cancer surgery.
2. Gingrich reportedly had girlfriends (plural) during his unsuccessful run for Congress in the mid 70s. That's when one of the women came forward and said that Gingrich liked to have oral sex because then he could deny having "slept" with the woman.
3. In 1981, Gingrich marries his second wife, Marianne, who he started dating while still married to his first wife, Jackie. Gingrich asked her to marry him before he was even divorced.
4. 1999, Gingrich meets third wife, Callista, 26 years his junior, while still married to second wife, Marianne. Second wife is diagnosed with MS, Gingrich divorces her and marries third (remember that the first wife had surgery for cancer when he divorced her - it's at least an interesting coincidence). He allegedly already had asked wife number three to marry him before he asked wife number two for the divorce.
http://minor-ripper.blogspot.com/2011/11/timeline-of-gingrichs-affairs-marriages.htmlHe's a serial adulterer. He also converted from Southern Baptism to Catholicism in 2009.