You can stop the pain
Having your heart broken hurts. A lot. What most people fail to realize is that making it stop is very much in their power. You are the only one who can control how long the pain lasts. Maybe you couldn't control what happened to break your heart. After all, you don't control others. Someone you cared about, or loved, hurt you badly. Now you're left feeling lost, broken, hopeless.
You go through everything over and over in your mind. If only you had done something different. If only they had been the person you wanted them to be, who you had hoped they were. You think of what could have been. What you wished had happened. You spend every moment with that person slipping into your mind. You allow them to continue to have power over you.
You know they hurt you and part of you might even hate them for that, but not enough to make you let go. The sad part is, that's all it takes. Focusing more on the people around you (you know, the ones you've been avoiding and pushing away because of the pain) and realizing that there is so much more to life than pining over someone who hurt you.