Well, what I can tell you is that the pain system is used to encourage humans to keep their close social relationships
Well.. take some positive stock in what you're feeling. That emotional pain you're feeling from your broken heart--not only is it natural, but it's believed to be part of the survival instinct. Your body wants you to maintain your close social relationships, and you feel pain when they're lost. It's classic ''social-attachment system'' theory. You're human!
I am just devastated!  My boyfriend broke up with me last night!  I'm still crying! Would you say you have a broken heart ? This term metaphor is for the intense emotional stress on feels It just hurts so much!  Why did he have to break my heart?  Metaphorically or otherwise!  Will I ever get over it? I can't answer you that, what I know about emotional pain is that it can cause broken heart syndrome if it is severe. I couldn't even go to work today, I am so stressed! I hate him!!  I know that time will help, but right now I am so miserable!
The ''social-attachment system'' uses the ''pain system'' to encourage humans to maintain their close social relationships by causing pain when those relationships are lost.