- Personal growth.
- Heightened health consciousness due to losing her mother at a young age.
- Heightened urgency to enjoy the life while you can (again due to the reason given above).
- No more necessity to prove herself in front of the once estranged family members or ex-husband after reconciling with her family and achieving a record success last season.
- She wants to be free!
She is a brave woman.
What is your guess? Why Justine quit?