A man often sends short messages to my girlfriend to tell her about my affair. Actually, I did cheat. Can I call the police? Is his behavior illegal?

Although his behavior is not illegal, he is also a villain who opposes you and is afraid of chaos in the world.

You should try to teach such a person a lesson and tell your girlfriend that this person is not a good person, so be careful to be cheated by him.

Such people are obscene and have poor character, so stay away from them in the future.

At the same time, it is wrong for you to cheat. You should correct your bad behavior and stop making mistakes.

I wish you peace, health and happiness.