This is where your past experiences (understandably) colour your views on this case.
The shitty reality of living with an addict, not someone who overdoes it a bit at the weekends, a real, bona fide addict, is soul destroying over time.
But ..... this is not that scenario.
Their lifestyles and finances are so removed from the ordinary persons experience it'll be hard to relate. For instance, AH wouldn't have the same financial concerns that we would have surrounding money being used on drink and drugs. She wouldn't have the same issues with having to clean up the aftermath of a particularly protracted episode. She has cited that he had staff that would clean up afterwards, whether that be him physically or any mess in the property. Whilst still unpleasant to witness not as rage inducing as Joe publics experience.
I've been watching the court case as presented, I'm not a JD fan and I wasn't really aware of who AH was prior to the trial. JD has been upfront about his addiction issues, admits to being in a argument laden, unhealthy relationship with AH but denies being the perpetrator of any physical assault.
AH doesn't just talk of the frustrations of living with an addict, or his behaviour in relation to drink and drugs benders, she describes several vicious physical attacks. The attacks she describes are horrific and brutal, resulting in many injuries. However, she has yet to provide sufficient evidence to support these accounts. The couple of pictures she has provided are not consistent with the type of attack that she says preceded them and she has not been seen to be sporting swelling and bruising by any independent witness. Furthermore, there has been evidence presented that demonstrate AH has been physically violent to JD. Not in a retaliatory fashion but as the aggressor, this has been supported by audio evidence and independent witnesses.
How the case will go, I'm unsure. Their relationship was a mess and it could be argued JD's fame was already on the wane. The actual claim here is defamation, he'll need to definitively prove that it's through AH's claims and not his own actions that have led to him losing work and damage to his image.
I don't like the narrative that if you critique AH's claims you're an abuse apologist JD sycophant.