What would you do if your best friends boyfriend posted this video on Facebook

I saw on Facebook that my best friends boyfriend said "For anyone who never believed me when I said Angelic is crazy". And you can't see anything. You can just here him and my best friends voice. He's saying "Let me leave" and she's screaming no and that he's no leaving and he says "You hit me in the face. My nose is probably fucking broken. I'm leaving". My best friend is screaming and crying that she's sorry. She didn't mean to hit him that hard and he said you never mean to and she starts talking about her abusive dad and he says again "I'm leaving and then the phone crashing and it's just him screaming "Angelic stop!" And she's screaming you're not leaving me. And it's just screaming at that point. It was extremely disturbing and at them her boyfriend is screaming and saying wtf is wrong with you and his voice is cracking and he's saying he needs to go to the hospital and she's still saying he can't leave. The video was 37 minutes long. I stopped watching after 12. He posted pictures of a broken nose and a broken eye socket and 4 broken toes and claims she broke his nose by hitting him in the face and his eye socket got broken because she took his steal toe boot and hit him with hit and took a hammer to his toe and the hammer part wasn't recorded. He also said "So next time people wanna say female on male abuse isn't bad because they don't cause damage". He also said My best friend tried to tell the police he hit her too and he said the only time he hit her was to get her away from him when she attempted to bite him and the police saw she had 0 bruises and that he has several broken things on him My best friend hasn't been active for a while and I thought to google new arrests and there she was for domestic violence..... I don't even know what to say... I knew my friend can be crazy but it's usually with other women.... I mean she doesn't get crazy with me because she knows I can lay her ass out but like other female friends. But this was next level.