1. The possibility of maintaining contact: Both parties may believe that there is still a chance for reconciliation in the future, or at least hope to maintain a friendly relationship so that they can support or contact each other when needed.
2. Respect and maturity: It reflects an attitude of maturity and respect towards the other party, believing that even if they break up, their existence should not be completely erased, as they have shared common experiences and memories.
3. Avoid embarrassment or conflict: Sometimes, in order to avoid embarrassment or unnecessary conflicts caused by deleting or blocking each other on social media, choose not to delete each other, maintain the status quo, and let time slowly fade away everything.