Judge Sherry Stephens read more than 100 juror questions aloud in court on Wednesday and Thursday.
"After all the lies you have told, why should we believe you now?" the jury asked.
"Lying isn't typically something I just do," said Arias, 32, regarding the 2008 killing of her ex-boyfriend who she’s depicted as a controlling sexual deviant. "The lies I've told in this case can be tied directly back to either protecting Travis' reputation or my involvement in his death ... because I was very ashamed."
When his body was discovered June 4, 2008, in his Mesa, Ariz., with 27 stab wounds, a bullet to the head and his throat cut from ear to ear, Arias denied any involvement.
After DNA proved she was there, she claimed two unknown men entered the home and murdered Travis.
Years later she admitted to killing Alexander but claims it was in self-defense since he was enraged over a dropped camera. The prosecution, however, contends she murdered Alexander in a jealous rage.
"Would you decide to tell the truth if you never got arrested?" the jury wanted to know.
"I honestly don't know the answer to that question," Arias replied. She has explained she felt ashamed for killing Alexander and couldn’t say with certainty if she would've come clean if cops didn’t narrow in on her as the main suspect.
"How can you say you don't have memory issues when you can't remember how you stabbed him so many times and slashed his throat?" the jury asked.
"I think that I have a good memory and June 4 is an anomaly for me," Arias replied. "Like I said yesterday, it's in a class of its own and I can't explain what kind of state of mind I was in. Most of the day was an entire blank and little pieces have come back, but not very many."
Arizona is one of three states that allow for a jury to ask questions after both the prosecution and defense have finished.
If Arias is convicted of murder, she could face the death penalty.