She raised her hand to try to get hold of the axe, when her finger slid along the sharp side of the axe, badly slicing it, with her finger then just attached by a small piece of skin.
She later had to have her finger amputated.
The victim, cried as she read her victim impact statement in court, saying she had never felt so scared or so trapped as when she was with him.
The injuries to her hand had a huge impact on her life, making it hard for her to write and difficult for her to find employment, she said.
"Every time I look at my hand, I feel disfigured. It is a constant reminder of my memories [with Patangata] and these are not times I want to remember, because of the violence of our relationship."
She described him as "paranoid control freak" who would constantly accuse her of infidelity.
Now she was no longer with him, she said she was much happier.
"I don't have to be afraid all the time."
Judge Cooper said the victim was still suffering from both the physical and emotional impact of the offending.
He said while Patangata may not have intended to slice his partner's finger, he was still responsible for the attack.