The pain you feel after you realized that you love this guy but in the end he didn't love you. Instead he loved your best friend that you have known for most of your life. They stab you in the back and all you feel is this intense horrible pain. You don't want to live. You don't want to eat. You don't want to talk to anyone. All you do is cry your heart out and mask what you're feeling so others wont ask. You just want to die and make everything go away.
I realized that I loved him so much but in the end he hooked up with my best friend. Now I all I feel is heartache.