Flack's family originally confirmed her death with the Press Association, saying, "We can confirm that our Caroline passed away today on the 15th February. We would ask that the press both respect the privacy of the family at this difficult time."
Flack was charged with assault in December for an incident involving her boyfriend, Lewis Burton. Though she pleaded not guilty to the assault charge, she was released on bail with conditions that prevented her from having contact with Burton ahead of the March 4 trial.
In the unshared post, Flack's family claims she wrote that she "took responsibility for what happened that night" but said it had been an accident and she "was NOT a domestic abuser."
She also allegedly wrote that "the truth has been taken out of my hands and used as entertainment."
According to Flack's family, she had been advised against publishing the post.