OK - best you don't worry about though. You'll have to sift through; tort actions, stalking actions, criminal actions, transmission actions, etc. etc. A person who wants to lawyer up can come at one through different ways; it's like the game of chess. Until he makes a move you won't know your next move. So I wouldn't worry about it if I were you; we've all said stuff in the heat of the moment (another defense to certain actions).
You made it over the phone so it wasn't imminent, wasn't going to provide a reasonable apprehension of fear, it could have been conditional, could have been a threat of future harm.....no over act with the threat (tort, sometimes crim element)
Best you don't research on it and continue with your day. Searching for law is daunting, it'll screw with your workout, lol.