Is it illegal to send text messages to scold mistress

It is illegal for a wife to send a text message to scold a mistress. Even if Xiao San should be condemned on the social and moral level, insulting others or even engaging in more serious behavior is also a violation of the relevant provisions of the Law on Public Security Administration Punishment. Whoever publicly insults others shall be detained for not more than five days. Therefore, it is not illegal to send a text message to scold a mistress, but it is illegal.