3. When gifts he received during your relationship bring back memories.
Gifts and other memorable items from the relationship can remind guys of the good moments they shared with their ex-girlfriend. “I get sentimental when I brew coffee in the morning on weekends, because my ex gave me this drip pot,” a guy in his 20s said. If you still see your ex-boyfriend, you could ask him if he still uses the gifts you gave him, which will get him to think about all the moments you shared in your relationship.