1. Face the facts: First, admit that you made a mistake. Facing your own mistakes alone is undoubtedly a good starting point.
2. Seek help: If you feel that you can't cope alone, you can consider seeking the help of a counselor, psychologist or other professionals, giving yourself a chance to listen and get different advice.
3. Communicate with your partner: Communicate with your partner as soon as possible, honestly realize that you made a mistake, and apologize to each other. At the same time, formulate countermeasures with each other to prevent the threat from continuing.
4. Seek legal help: If the threat of a third party involves illegal acts, such as extortion, you can consider reporting the case to the police and taking legal action under appropriate circumstances.