As for Brazilian bombshell Wesley Senna Cortes, fans believe he may also leave the show single, with the odds of this happening currently listed at $2.00.
Previously the 32-year-old has admitted that he's "never had a girlfriend."
"Obviously, I grew up with Christian values and trying to do the right thing and not be another reason for girls not to trust men [...] I never saw myself as being a one-night-stand guy and, matter of fact, I've actually never had sex," he shared in the second episode with his fellow bachelors who applauded him for his honesty.
But surprisingly, despite this, sparks quickly flew between him and 25-year-old mining administrator Brea, so much so that the pair decided to leave the competition prior to the final rose ceremony.
"I love how clumsy you are and I think you're beautiful and I think the spark was something that kept on growing. So, from now, I would actually love to just focus on you," Wesley told Brea.
Things quickly took a turn south for the couple however after Wesley revealed to Brea he didn't want to share a room with her during an overnight stay at the Bachelor mansion.
"It's almost comical because there is a bit of a dampener on the mood. Right now, this is not a good start," the Queenslander told cameras.
Fingers crossed their love lasts beyond the final rose ceremony!
Finally for former professional sports star Ben Waddell, 25-year-old PR Manager McKenna is looking like she'll be the one to steal his heart, with her odds to "win" the show currently listed at $1.57.
In the past Sportsbet has made numerous accurate predictions with popular reality shows including The Masked Singer, My Kitchen Rules, and Big Brother.
Curiously, despite Wesley previously admitting to our sister publication TV Week that the "bro code" was tried and tested throughout the season, the suitors all have very different contestants in their top spot.
However, things can change quickly in the mansion, let's just hope no hearts get broken in the process!