Snap.
He also illicited confidences out of every gf about their most stressful/embarrassing/traumatic etc. experienced or "mistakes" ... and then blabbed thembto other people to undermine her. Usually after the relationship had broken down (almost entirely due to his controlling behaviour) but with me he started even before it broke down.
(Hence I found myself in a bizarre surreal semi confrontation/intervention with his mate having been taken to his house for a social call; on the subject of theft, pilfering etc. with the implication that i could not be trusted in people's homes, around cash/valuables. Because I'd told my ex I was embarrassed to have shoplifted as a youth, 15 yrs before).
After we finished I had more than one member of the sports club through which we met give me really odd, off, speculative, starey looks as well; fk knows what he was telling them about me.
When we finished I was tearing up/crying but he was repeating the phrase "don't you bad mouth me, and i won't bad mouth you", over and over.
Some of the things (undoubtedly also told to him in confidence) that he told me about different exes, which I didn't recognise as a red flag;
Her anal rape at a hotel attending a wedding by her ex husband, a prolific porn user who later left her for a teenager.
Her mother's affair with the local policeman, in which her mother made her carry messages, and when she challenged her years later about it, was struck in the face by her Mum.
Her father's alcoholism, including not being able to take her Mum to hospital (very rural region) to save an unborn baby's life.
Her mostly emotional affair while married to her ex.
I could go on.
He was gossipy, salacious, indiscrete ... Tried to cast himself as sympathetic towards the victim but wasn't actually. And I was so dumb I told him extremely personal things he used as ammunition.
I moved away from the region not long after the relationship ended but if I hadn't he'd have made my sport/hobby club very difficult to attend due to scandal mongering, blackening my name... May even have affected me getting work if I'd done any self employed work in the area.