It sounds to me like he’s playing mind games, making you doubt yourself and your experiences. He’s trying to hoover you back in.
I recommend going no contact. If you absolutely must have contact, maybe due to children, then I recommend using the ‘grey rock method’. Google will explain it better then I can, but you only speak to him when necessary, only facts, no emotion, no leading conversation, so you become boring to him, like a ‘rock’ and they back off.
From experience though, he will try anything to get a reaction from you, to get into your head, but don’t fall for it. You are strong, you can do this x