What Hereforhelp said 👏 unless there’s a court order forbidding you, it’s just scare tactics. My ex used to make all sorts of similar legal threats – he was either trying to get inside my head, or didn’t actually have a clue what he was talking about, or both. Sometimes I think he imagined the world like some sort of exaggerated American TV legal drama series…
Have a wonderful, peaceful holiday and do get support from police/other authorities beforehand if you’re concerned.