n. the fear of forgetting; being forgotten,ignored, or being replaced
This is a scary phobia because it can easily become a reality. Being forgotten, ignored, or replaced is one of the worst feelings known to mankind. It is easy to forget those you once loved and needed, but you need to remember that they were there for you. You may not need them now, however, they may need you now. Call them, or better yet, go meet up with them. I am sure it will bring a smile to their face and yours to know that you still share some sort of connection.