Have you ever wonder why your heart feels like it’s breaking into a million little pieces after your partner leaves you? Over time you have created an invisible emotional bond between the two of you. So when you break up, You literally feel it!! It’s an open wound, and just living and breathing makes it hurt inside. I promise you that over time that heals, just make sure you are healing in a healthy way.
Just like any wound there needs to be processes to heal. The book goes into great detail about that process.