What kind of person is sending threatening text messages? look

Useful, the police will take care of it! You must keep the message. Change your phone number if you want to hide. Send this message to a close friend and tell him that if something happens, there will be evidence, but I'm sure your ex-boyfriend won't do that. Don't take it too seriously. Just to scare you. It's okay! There are not so many triads in the world! Do you want to call the police?