Abuse doesn’t have to be physical we all know that. I believe she’s a narcissist and he pretends to be more innocent than he actually is. The way he is, the way he talks to her in those recordings is a completely different person that the shy, awkward gentle persona he has presented to the world.
She’s obviously far worse than him as she seems like to be a sociopath/narcissist but he’s f**ked up too.