1. Emotional processing: After a peaceful breakup, whether to delete the other party depends on your personal emotional processing method and recovery status. If you feel that deleting the other person can help you recover faster from a breakup and reduce unnecessary emotional fluctuations, then you can choose to delete.
2. Future relationship: Consider whether it is possible for you to maintain a friendly relationship in the future. If both parties wish to maintain a certain level of contact, whether as friends or for the sake of their children (if any), then it may be more appropriate not to delete.
3. Personal boundaries: Establishing personal boundaries is also a factor in deciding whether to delete the other party. If you feel that keeping the other person on social media or contacts will constantly remind you of the past and affect your daily life and mood, then deleting may be a way to protect yourself.