The 19-year-old from Guisborough won a place in Nicole's top three on Sunday night (6 October) following a tense judges' houses in beautiful Antigua.
Abi said afterwards: "I can't believe I'm through to the live shows and it still hasn't sunk in: I never anticipated getting this far.
"I'm really looking forward to putting my own twist on classics at the live shows."
She added of her Antigua experience: "Vocally my audition at judges' houses wasn't perfect, but I think it was the emotion I put into the song that got me through. I was so nervous at the thought of getting a 'no'."
The teenager currently works as a sales assistant at a grocery chain (she says it's "boring") and lives at home with her parents, but she's hoping the The X Factor will help change her life, as it did with last year's winner James Arthur.
Abi and James grew up in the same area. "I used to do gigs with James Arthur," she said. "Musicians in the north east are part of a very tight-knit community, there are a lot of undiscovered gems there."
Like James, Abi is a singer-songwriter who can play guitar and piano. Her first audition for X Factor saw her wowing the judges with a self-penned song about heartbreak. It clearly struck a chord with Nicole, who started crying.
Reflecting on the song, Abi said: "It was about when I was going through a break up. In between the first audition in the room and the arena, that situation happened and that song was really raw. We'd been together just over a year. Everyone goes through heartbreak at some point in their life and that's why I decided to sing that song because ultimately I want to relate to people."
X Factor continues Saturday, 12 October on ITV1.
Check out pictures from judges' houses below:
Watch Abi performing 'I Want To Dance With Somebody' below: