The Bachelor SPOILER: Last year's winner Chelsie McLeod reveals the telling clue that 'proves Irena Srbinovska wins Locky Gilbert's heart'

Nurse Irena Srbinovska is the current bookies' favourite to win Locky Gilbert's heart on The Bachelor.

And last year's winner, Chelsie McLeod, has revealed the telling clues in the season premiere that appear to confirm Irena will indeed be the last woman standing.

While watching the show with a friend on Wednesday, Chelsie revealed on Instagram that she'd worked out the secret 'code' that gives away the outcome.

The Bachelor SPOILER: Last year's winner, Chelsie McLeod (pictured), has revealed the telling clue that seemingly proves nurse Irena Srbinovska wins Locky Gilbert's heart

The Bachelor SPOILER: Last year's winner, Chelsie McLeod (pictured), has revealed the telling clue that seemingly proves nurse Irena Srbinovska wins Locky Gilbert's heart

As soon as Irena stepped out of the limousine and met Locky, Chelsie noticed the distinctive soundtrack that is associated with winning contestants.

'Ooh, winner's music!' she said excitedly, before adding: 'Top four surely... that music. She's cute.'

But the plot thickened when Bella Varelis, who is also rumoured to make it to the finale, was given a similar 'winner's theme'. 

'Ooh, winner's music!' As soon as Irena stepped out of the limousine and met Locky, Chelsie noticed the distinctive soundtrack that is associated with winning contestants

'Ooh, winner's music!' As soon as Irena stepped out of the limousine and met Locky, Chelsie noticed the distinctive soundtrack that is associated with winning contestants

Hmm! Chelsie observed that Irena's gesture of checking Locky's heartbeat with a stethoscope was remarkably similar to how she had greeted Matt Agnew on The Bachelor in 2019

Hmm! Chelsie observed that Irena's bold gesture of checking Locky's heartbeat with a stethoscope was remarkably similar to how she'd greeted Matt Agnew on The Bachelor in 2019

Will history repeat itself? 'This is literally where I undid Matt's shirt [to give him a temporary tattoo] on night one. Winning code? Thoughts?'

Will history repeat itself? 'This is literally where I undid Matt's shirt [to give him a temporary tattoo] on night one. Winning code? Thoughts?' 

But chemical engineer Chelsie observed later in the episode that another moment between Locky and Irena tipped the odds back in her favour.

She said that Irena's bold gesture of checking Locky's heartbeat with a stethoscope was remarkably similar to how she had greeted Matt Agnew on The Bachelor in 2019.

'Winning code?' she asked. 'This is literally where I undid Matt's shirt [to give him a temporary tattoo] on night one. Winning code? Thoughts?'

Chelsie went on to win Matt's season, but they broke up a few months later. 

Could it be Bella? Chelsie noted, however, that Bella Varelis, who is also rumoured to make it to the finale, was given a similar 'winner's theme'

Could it be Bella? Chelsie noted, however, that Bella Varelis, who is also rumoured to make it to the finale, was given a similar 'winner's theme'

Irena is currently Sportsbet's favourite to win the competition with odds of $1.75, followed closely by Bella at $3.

Their closest rival is aspiring actress Marlaina McPhillips at $5.50. 

The Bachelor continues Thursday from 7:30pm on Channel 10

Tune in: The Bachelor continues on Thursday from 7:30pm on Channel 10

Tune in: The Bachelor continues on Thursday from 7:30pm on Channel 10