A woman who was Jeffrey Epstein's "main girlfriend" for about seven years and has remained silent due to a 2008 plea deal could have to face lawmakers in an investigation, according to a report from The BBC this week.Nadia Marcinko, who was an assistant pilot for the late financier and convicted child sex offender's private plane and visited him at least 67 times in prison, was among four women previously named as Epstein's "potential co-conspirators," The BBC reported. She was his "most significant partner after Ghislaine Maxwell" and was granted immunity from prosecution — but that could change. Two of the women, Sarah Kellen and Lesley Groff, who have been named as Epstein assistants, will respond to questions from lawmakers investigating Epstein's abuse. And despite their plea deal, Rep. Anna Paulina Luna (R-FL) now wants all four to testify before the House Oversight Committee, including former Epstein assistant Adriana Ross and Marcinko.Luna reportedly saw the unredacted files in February and reacted to the new information."All of these women engaged in the trafficking of minors as adults. They were working and complicit with Jeffrey Epstein's operation," Luna said.Marcinko has remained largely out of the public eye."Marcinko has never been accused of, or charged with, any crime," according to The BBC. "Her lawyers say she is one of Epstein's victims. But girls in Palm Beach, Florida, whose testimony about their abuse when they were under age led to Epstein's conviction in 2008, told police that Marcinko participated in that abuse."The BBC described its investigation of Marcinko and Epstein, including its review of email correspondence in the Epstein files "to try and build a detailed picture of her role in the disgraced financier's life.""The emails reveal Epstein and Marcinko wanted to start a family together, we have discovered," the outlet reported. "The BBC has also found evidence suggesting that over many years, he asked her to recruit other women to help satisfy his sexual desires and she complied.""But the emails also expose deeply coercive tendencies on the part of Epstein," according to The BBC. "Marcinko later told investigators that he was physically violent, choking her, and throwing her down a flight of stairs. We have had access to her account to investigators via a document that was released - heavily redacted - by the US Department of Justice in January. Marcinko's name is not visible, but the five pages of testimony match in every detail what we know about her from other sources."Epstein's emails with Marcinko show the dynamic between the two — and the level of control Epstein tried to assert over her, The BBC reported."I want you to learn how to cook eggs. scrambled poached over easy... I want you to learn how to run a house.. I want no arguments during the monday to friday, week… I want you to read one of the hundred great books every month… I want beautiful things only in the house. you cannot put anything in, without letting me see it first. J"Marcinko told investigators after Epstein's death that he tried to control "every aspect of her life, including her weight and clothing. She said he had forced her to have multiple plastic surgeries and physically abused her.""We have not found any direct mention of those incidents in their email exchanges, but that does not mean they do not exist somewhere in the files. In one email we found, she accuses him of 'abusive partner behaviour,'" The BBC reported."And there is repeated reference to Epstein's expectation that Marcinko will scout for other women or girls for him," according to The BBC.