It's really a thing hard to imagine . Why it is so difficult to forget the loved ones who are no longer with us. Commonly understood logic is that we had so many interactions with them . So those memory constantly keep popping up . I invite you to consider this quote by Cicero THE LIFE OF THE DEAD IS PLACED IN THE MEMORY OF THE LIVING. Do never try to forget those. As long as you remember them , they are alive in your memory. Thanks for reading. God bless you.