Flemmi pleaded guilty to 10 murders after charges were brought in 2004 and was spared the death penalty after agreeing to testify against Bulger.
Of his relationship with Davis, he told the jury: "I loved her, but I wasn't in love with her."
After court, the attorneys discussed the defense's amended witness list which had been reduced to 30 on Tuesday, from originally over 80 witnesses. Prosecuting attorney Brian Kelly argued that at least 15 of the witnesses -- former FBI agents -- would be a "waste" of the jury's time, as they are being called to refute the notion that Bulger was an informant, something Bulger has strongly denied. Kelly called these witnesses "irrelevant."
Defense attorney Hank Brennan responded: "Our witnesses are now down to 30. They are relevant to our case and we intend to call them."
The defense had mentioned on Tuesday that it would shrink its list if alleged extortion victim Stephen Rakes didn't testify because several defense witnesses were intended to challenge Rakes' expected testimony.
Rakes learned Tuesday that prosecutors no longer planned to call him to the stand, according to a friend of Rakes. On Wednesday, Rakes' body was discovered near a walking trail about 30 miles from his home.
CNN affiliate WBZ reported that his car was found Friday about six miles from where his remains were found.
Federal law enforcement authorities were "shocked" to learn about the unexplained death of Rakes, according to a source familiar with the investigation into Rakes' death. Authorities consider Rakes' death suspicious, the source added, and authorities hope that there is no connection to the ongoing Bulger trial.
The death is under investigation.