1. Respect boundaries: Avoid mentioning your ex during the first meeting or when the relationship is not deep, so as not to make girls feel uncomfortable or compared.
2. Positive expression: If it must be mentioned, it should be discussed from a positive and growth perspective, such as what has been learned from the previous relationship and how it has become better.
3. Focus on the present: Emphasize the importance of the current relationship and make girls understand that mentioning an ex is to demonstrate personal growth, rather than nostalgia or comparison to the past.