What does it mean to put a picture of your boyfriend behind the phone case?

Putting the photo of boyfriend behind the phone case means missing. According to the relevant information, there are photos on the back of the mobile phone case, and the people in the photos are generally people who are not around, indicating their miss. It can also help people get closer, share each other's photos and appreciate each other's lives and memories. Photos placed on the back of the phone case usually represent personality and unique style, or add special elements to the person's memory and thoughts.