The 27-year-old blonde posted a snap of her and new beau, who also appeared on the reality-TV show in 2017.
'I went on the wrong season hey @melschilling1,’ wrote Jess.
'This was my plan all along,' Mel responded with a winking face emoji.
'I knew it!' quipped Jess.
Nick also chimed in: 'That’s why you’re the expert,' along with a winking face emoji.
Taking to social media, Cyrell took a screenshot of an article about Jess where the blonde model claimed the Channel Nine hit show was 'faked'.
Re-posting a photo to her Instagram story, the outspoken reality-TV star wrote: "Once a liar always a liar! Stand up and take responsibility for ur f****d up actions!!"
Cyrell also added a series of crude emojis, namely an eggplant emoji over a gif of Jessika Power's face, and a cruel vomit emoji over the original photo of Jess.
The original post read: "#MAFS Jessika and Ines claim the show wasn't real!"
Responding to Cyrell's Instagram story, Jessika put up a lengthy video of her own.
WATCH JESSIKA SLAM CYRELL AS A BULLY!
"I know I said in my Maxim interview that the show is not real, it is reality TV, meaning that situations you are put in on that show are not real life. They wouldn't happen in real life.
"I'm not saying that they are not real, I'm not lying," Jess continued.
"In no way, shape or form am I saying my actions on the show were right, they were completely unethical."
Jess then calls out Cyrell for using her considerable platform to bully and belittle.
"Putting emojis and writing horrible things all over a picture of me, it's really just a show of your character.
"I really feel like as much as you think you're perfect, and you think that me, Martha, Ines, that have all done things that we've done, are not perfect."
"You've got some major self-growth to do, and I really hope you do it."