Ret. Gen. David Petraeus says his resignation from the CIA in the wake of an extramarital affair was not related to hearings concerning attacks on the U.S. consulate in Benghazi, Libya, according to news reports.

He spoke, off-camera, with Kyra Phillips of HLN, who described their conversation Thursday, according to transcripts from CNN and HLN TV.

“In our first conversation, he had told me he had engaged in something dishonorable. He sought to do the honorable thing in response — and that was to come forward,” she said, according to a transcript from HLN TV. “He was very clear that he screwed up terribly — it was all his fault — even that he felt fortunate to have a wife who is far better than he deserves.”