Speaking to the Daily Star, the former WAG admitted that she is miffed despite being friends with show star Amy Childs.
"I don't understand The Only Way Is Essex. I asked Amy, 'What the hell is all this about?' It can't be real. It's bonkers. She tried to explain but I still don't get it," Rivas revealed.
Yesterday, it was reported that Childs would be quitting Essex to sign a lucrative contract for her own show.
The Only Way Is Essex continues tonight at 10pm on ITV2.
> Elen Rivas 'regrets dating Peter Andre'