One of the most important things you can do is keep communication to a minimum. Once the relationship is over, resist the urge to text, call, or email your ex, even if it's just to say goodbye or communicate about logistics. Any communication can be used as ammunition in a revenge plot. So it's best to refrain from contact altogether. If you must communicate (for example, if you share custody of a pet or child), do so through a third party, such as a mutual friend or lawyer.