"Jack" & I used to have a situationship. He's a covert narcissist type, reels women in with sob stories and fake vulnerability, then starts hot and cold behaviour and devaluing, he was emotionally abusive and it took me a while to see it, eventually I took distance. Recently he's been pestering me to be friends, like an idiot and out of boredom I chatted to him a bit. He says to me: "I have a girlfriend and a mistress and I'm treating them both like shit!" I was surprised to see him openly admit to bad behaviour, he's always playing the victim usually.
The girlfriend, "Jill", lives abroad (LDR). The mistress, "Jane", is a work colleague I’ve been hearing about for years. Married, her husband is leaving her, her mother has cancer, she has depression, she recently had a suicide attempt that sent her on indefinite leave. Jack started an affair with her right before her attempt (but it's still going on). He says she's attractive and she's "bothering" him, so why not? "To prevent trouble I told Jill that Jane is a crazy friend who became in love with me and she's harassing me".
Jack and I are not going to be friends ofc. But he did manage to get into my head! Is this true? If it's true, isn’t the whole story kind of dark, and should I warn someone about him? Should I tell Jane to watch out because he is abusive? When I was depressed and I was close with Jack, he did everything he could to make me worse and kept casually mentioning suicide, maybe he is doing the same to her. Should I tell Jill she is being cheated on? A friend who heard the story even suggested I make an anonymous complaint to the workplace because he may be exploiting a vulnerable colleague.
Or should I just stay out of it and go NC? Probably the only sane option, although tbf I don't care about looking crazy to any of these people, and I do have his self-incriminating texts and voice notes. What if he is baiting me to do something, though? What if it's all made up for drama? WWYD?