My ex boyfriend … narcissist red pill …

His finance and out of the blue found me and messaged me on fb questioning my past with asking if “ this is how he was” and “ am I crazy because he’s making me feel like I’m the problem” aka she’s finally caught on and is stuck in his abuse of red pill power. She has said she is basically stuck - has been isolated from all friend and family and he “ won’t leave” . He claims he knows what’s best for her - and she is to do as he says to make it right because she will “ never have any life better without him “.. same shit he pulled on me - gas lighting - making me question my sanity. She shared screen shots of his horrid behavior and threats - stating she has no plan and can’t just leave because she has nowhere to go plus has 2 boys of her own . Luckily I have supportive family who recognized I need to get out before it was to late. Fast forward to tonight where I get another message from her basically apologizing for causing any issue - stating she was wrong and he HAS changed and is a better man. Then stating something from the bible about Jesus ( legit crazybshit). It’s obviously him having an influencer over her since she got caught reaching out to me - he clearly wrote this message and sent it to me. I’m at a loss because I do not want to get involved but it morally seems wrong to leave her in possible danger I know how hard it is to get out. Calling the police could only make things worse if she claims everything is fine . So what does one do