During a conversation about this year's I'm A Celebrity, Alison was heard using masculine pronouns to describe Caitlyn.
The former Celebrity Big Brother star reflected on their "toxic" relationship a year on from their break-up.
After one of Vernon's Instagram followers questioned his relationship with the Strictly Come Dancing host, he was quick to speak out.
The chart-topping girl group are heading off on tour in 2020, but without one of their original members.
The Pussycat Dolls star said she was "devastated" when the casting director refused to even see her audition.