The past does not haunt us. We haunt the past. We allow our minds to focus in that direction. We open memories and examine them. We reexperience emotions we felt during the painful events we experienced because we are recalling them in as much detail as we can.
Reading takes solitude and it takes focus.
I'm not going to waste my energy looking into the eyes of someone like the guy who blew my legs off trying to find a way to forgive him for doing something that horrible when there are way more productive ways I could be spending my life. You've got to focus on moving on.