
What happened exactly? I think we can give a better response if we know what group we are talking about, what happened, and the generalization being made. I ask because this is not really a characteristic of men, but rather women, at least in the experience of my female friends or in the study of social psychology.
Not a man, sorry, but I’ve had the exact opposite experience most my life. All my guy friends have legitimately hated each other over girls or whatever at some point, but we’re all still best friends. Meanwhile, my ex-girl (space) friends have ended out friendship over shit that happened literally 5 years ago