Paula Broadwell, whose extramarital affair with General David Petraeus led to his resignation as CIA chief, has confided to friends that she is devastated by the ensuing fallout.
The biographer is said to deeply regret the damage that has been done to her family and everyone else's, and she is trying to repair that and move forward.
Mrs Broadwell's friend spoke on condition of anonymity to the AP news agency because he was not authorised to speak publicly.
A group of friends and neighbours welcomed Mrs Broadwell and her family back to their home in Charlotte in North Carolina at the weekend, after she spent more than a week lying low in Washington.
Paula Broadwell is "overwhelmed" by the support of friends and neighboursMrs Broadwell is still being investigated by the FBI over classified documents found on her laptop and in her home.
Investigators say many of the documents are old and Mrs Broadwell told them she did not get them from Gen Petraeus.
The FBI stumbled onto their relationship after tracking anonymous emails that Mrs Broadwell allegedly sent to Tampa socialite Jill Kelley, warning her to stay away from Gen Petraeus.
Mrs Kelley served as sort of an unpaid social liaison for Central Command, hosting parties at her Florida home, where senior officers would mingle with Tampa's elite.
Mrs Kelley kept in near-constant contact with the Gen Petraeus and Afghanistan war commander Gen John Allen, officials claimed.
Jill Kelley received threatening emails from Paula Broadwell, it is allegedThe scandal widened when the Pentagon announced it was looking into copious correspondence between Mrs Kelley and Gen Allen, searching for possible evidence of an inappropriate relationship between the two married people.
Gen Allen's nomination to lead the US European Command has been put on hold, pending results of the investigation, though officials now concede only a handful of the emails are of a flirtatious or questionable nature.
The FBI found no reason to further investigate Gen Petraeus, but the CIA is now investigating whether the former director behaved inappropriately, such as possibly using agency resources to further the affair.