Petraeus lamented the damage he'd done to his "wonderful family" and the hurt he'd caused his wife, Boylan said. Petraeus has been married for 38 years to Holly Petraeus.
"He screwed up, he knows he screwed up, now he's got to try to get past this with his family and heal," said Boylan.
Feinstein said Sunday that she has not been told the precise relationship between Petraeus and the woman who reported the harassing emails to the FBI. She said she has been told only that she was someone Petraeus "knew and was close to."
Broadwell interviewed the general and his close associates intensively for more than a year to produce the best-selling biography, "All In: The Education of General David Petraeus," which was written with Vernon Loeb, a Washington Post editor, and published in January.
The CIA did not comment on the identity of the woman with whom Petraeus was involved.
Broadwell is married with two young sons. She has not responded to multiple emails and phone messages. She'd planned to celebrate her 40th birthday in Washington this weekend, with many reporters invited. Her husband emailed guests to cancel the party.
CIA officers long had expressed concern about Broadwell's unprecedented access to the director. She frequently visited the spy agency's headquarters in Langley, Va., to meet Petraeus in his office, accompanied him on morning runs around the CIA grounds and often attended public functions as his guest, according to two former intelligence officials.
Petraeus' staff when he was overseeing the war in Afghanistan similarly had been concerned about the time she spent with their boss.
In the preface to her book, Broadwell said she first met Petraeus in the spring of 2006 while she was a graduate student at the Kennedy School of Government at Harvard.
Associated Press writer Adam Goldman contributed to this report.
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