"So I broke up with Alice over a long conversation that included an hour-long primer on evolutionary psychology in which I explained how natural selection had built me to be attracted to certain features that she lacked. I thought she would appreciate this because she had previously expressed admiration for detailed honesty. Now I realize that there’s hardly a more damaging way to break up with someone. She asked that I kindly never speak to her again, and I can’t blame her."
— Rationality Lessons Learned from Irrational Adventures in Romance, Lukeprog (Lesswrong)