There is no physical evidence that the baby ever existed. There is no place to go and grieve the loss. A woman may feel she has no right to grieve because she chose this herself. A man may be the last person to admit that he has a problem. Whom can they tell? Friend may reject them. People in general may disapprove of their life choices.
People deal with the aftermath of abortion experiences in different ways. The way they choose to deal with it changes them. Try as they may to forget, it is a day that will remain in the memory forever.