She also said in an interview at the Aspen Institute that Petraeus was "quite a physical specimen." During a talk at the Aspen Institute in July about the military, author Paula Broadwell said Petraeus loved to work out and made physical fitness a priority. 

She also said her access to Petraeus and classified information created "a clear line" she couldn't cross as a journalist. 

Petraeus, who has resigned as CIA director, acknowledged the affair in a letter to agency employees.

(Copyright 2012 by The Associated Press. All Rights Reserved.)