The former Bachelor in Paradise star also weighed in on Alisha's new relationship with Glenn Smith that's playing out this season.
"I'm kind of mad at Channel Ten because I feel like they've spoiled it already. In the promos that I've seen with the engagement ring on a finger - if that is not Glenn and Alisha proposing to each other, I will eat my hat!" Jules said, adding that he thinks he recognises Alisha's hands.
Jules made it clear there was no bad blood between him and his ex, stating: "If that is happening, that is 100 per cent gorgeous".
"I don't want to put out stalker vibes but all the information is there. If you pay attention to Alisha's Instagram, she has moved to Perth, fact. Glenn lives in Perth."
Jules also revealed that producers asked him if he'd like to star on season three of Bachelor in Paradise but it was a definite "no".
"There wouldn't be enough money in the world," he joked.
"I definitely wouldn't do it again, went in there for wholesome, realistic reasons of 'let's find love' but I would need some financial reparation for the emotional trauma I went through."
Jules and his iconic curly moustache originally starred on Ali Oetjen's season of The Bachelorette in 2018.
Alisha closed the door on a relationship with Jules during the finale, remarking that he has "a habit of sort of dangling the carrot" with her.
"When you kiss me in Byron Bay. When you sleep over at my house. And we're back there and we're together. Then you tell me it's a comfort thing," she explained.
"This is my night for closure. It doesn't mean that you're not going to be in my life, you're going to be in my life as like a fun girlfriend."