I absolutely believe that Lori told Audrey that she [Lori] watched Joe Ryan die and that she enjoyed it. Annie Cushing said Lori cheerfully told her about Joe's decomposed body with a kind of "manic" enthusiasm. "She went into pretty graphic detail about the state of his mattress," recalled Annie, "Really inappropriate detail. It was grotesque. I had to ask her to stop." [Source: The Doomsday Mother by John Glatt]
Insensitively wallowing in details about Joe's body in front of Joe's sister is sadistic. In some of her videos, Annie Cushing said she told her daughter after that visit that she thought Lori might be a sociopath. Keeping that in mind, it makes sense that Lori would be unable to resist the thrill of dramatically describing Joe's last breaths to her '100% on the trust scale' friend, Audrey.
I think there were red flags pointing to Lori's sadistic side well before Lori met Chad. Remember Lori's cousin, Megan Conner, who talked about how Lori laughed when Lori's high school boyfriend ran over a cat and the cat painfully howled as it died? Adam's former wife, Nicole, thought that Lori's method of disposing of dogs (that Lori had grown tired of) was cruel. Nicole wouldn't have brought up how Lori got rid of her unwanted pets if Nicole didn't find it significant. Nicole also described Lori as constantly craving attention and said Lori "always had drama in her life". [Source: The Doomsday Mother by John Glatt]. Charles Vallow's former wife, Cheryl Wright, agreed with Nicole's assessment. In an interview with East Idaho News, Cheryl said Lori seemed to enjoy herself during court hearings, despite the fact that the court hearings were dealing with the disturbing topic of children being molested. "She Loved it," said Cheryl.
Reveling in and enjoying describing her ex-husband's death with family and friends sounds exactly like something a sadistic drama queen would do.