Jealous Ramage had been raging after discovering the 41-year-old had been texting her lover Jason Bell, 51.
Susan was set upon at Bell's flat in Ayr and was stripped, choked, stabbed with scissors, disfigured and bludgeoned with various weapons.
The guilty pair, of Ayr, were yesterday handed life sentences at the High Court in Glasgow.
Ramage, 43, was jailed for a minimum of 22 years after earlier pleading guilty to the March 2023 murder.
Hill, 27, was locked up for at least 20 years after jurors found him guilty of the same charge.
Lord Mulholland told the duo: "As she was being subjected to the homicidal assault, she begged you to let her go. You ignored her pleas and subjected her to a brutal and cowardly assault. It was akin to torture clearly designed to demean and disfigure her as a woman."
The judge warned the pair they may never be freed.
Prosecutor ...