The Reason High School Bullies Get Back in Touch Later in Life
mashable.com
mashable.com
They reach out to people they knew and bullied in their past with the hope they can obtain a relationship in which they will still be dominant, instead of the friendless pathetic losers that they now have become because they made others feel that way in their past.
By the time a person reaches high school they have already learned what is kind and what is cruel, as much as people can change, most don't. A person who was cruel to you in the past will most likely be cruel to you again if you let them into your life.
Forgive and forget them, literally!