I have been thinking about the pains of relationship break-ups and their possible causes. What's the evolutionary path to responses like these? I theorize that the reason lies on our social nature, more specifically on our deep dependence on strong community ti in order to survive. In an atomized world like ours, where we belong to no other tribe than our immediate family, breakups easily trigger the fear if death response of being outcasted from the tribe. What do you think?