Jarrad Hayne, 5 years 9 months, page-63

The converse is that a man can assault a woman but it is the woman who gets grilled about her sex life and/or her sobriety, and has her character questioned. (though I believe things are afoot in NSW anyway to change this)

And the man can always claim it was consensual.

In this case given there was obvious evidence of violence the appeal might not succeed.

At the same time - what was the mother, who Hayne watched TV with for a while, doing during all this?