I'm going to hope that the opening sentences of this Telegraph story about research into a genetic link between physical and emotional pain reflects the dullness of the reporter, not the opinion of the scientists:
Researchers have found a genetic link between physical pain and social rejection, which means that breaking up with a partner really can be painful.
I hope that the researchers are cluefull enough to understand that an experience of pain is real regardless of our understanding of genetic or neurological mechanisms. Any scientist who thinks that reductionist explanations validate or invalidate the existence of the phenomenon they are trying to explain, needs a good smack. I don't need a neurologist to tell me that getting dumped can be painful, I have my own direct experience, thank you very much. The physiological correlates are not the experience.
Anyway, the research itself is very interesting, especially the evidence that people who are more sensitive to physical pain are also sensitive to social rejection.