It really makes more sense in retrospect that he grabbed her face as she demonstrated, & she scratched him in defence. Both because her phone couldn’t cut him & because it echoes what appears to have happened here.Same. There’s nothing sharp enough on a phone/phone case to leave scratches. JMO
I think it’s been mentioned before in this case, but stats say that women who are ever grabbed bu their throat by their partners, this increases their risk of murder by 750%.