If you use Google Photos then you would have seen the notifications it sends each day in the morning called memories. These memories bring up old pictures or events from a Wednesday five years ago. While it is meant to jog up your memories, it can often bring up memories of a deceased person or an ex.
Whether you want to see that photo or not, the internet will never forget, similar to how Facebook will never forget to remind you to send birthday wishes to a dead person. While our digital world is more connected than before, it has a lot of cracks including lack of sensitivity.