That woman, Meagan Broussard, a 26-year-old single mother from Texas, revealed to ABC News today that she began the sexually charged electronic relationship with Weiner on April 20 and exchanged hundreds of explicit messages and photographs with him.
Weiner, who married Secretary of State Hillary Clinton's aide Huma Abedin last year, last week claimed his account was hacked when a photo of a man's crotch in just his underpants was sent from his Twitter account to a 21-year-old college student. But in multiple interviews, the once-rising star of the Democratic party did not directly deny that it was him in the photograph, fueling further media speculation.
Today, the 46-year-old congressman admitted the picture was his and that he sent it "as part of a joke." But when he realized it was posted to his Twitter account, he panicked.
"To be clear, the picture was of me and I sent it," he said.
Asked why he lied, Weiner said "I was embarrassed," and he "didn't want it to lead to other embarrassing things."
Weiner said Abedin knew of his Internet affairs when they got married last July but did not know until this morning whether he had been telling the truth about the Twitter posting.
"She was very unhappy. She was very disappointed," he said. "She also said she loved me ... but she deserves much better than this and I know that."
ABC News' John Parkinson contributed to the report.