According to fans, Elly and the 25-year-old mechanic apparently know each other because they are both Newcastle natives. And that rumour hasn't been denied, with Network 10 even revealing that the pair have met in one of the recent promos.
Confirming the rumour, fans have also discovered that Elly follows Joe on Instagram.
And as past seasons of The Bachelor and The Bachelorette have shown, contestants who have met the leading lad or lady tend to become the front-runner for the top spot.
From Nick "Honey Badger" Cummins and Cass Woods to Matty J and Laura Byrne, many are rumoured to have previously crossed paths. And in Matty J's case, it clearly worked out perfectly.
In the meantime, we can only theorise—and secretly place our bets in the office sweep.
The Bachelorette premieres on Wednesday, October 7 at 7.30pm on Network 10.