In the experiments weve done weve shown that if you can date three people, and they all promise they can stay viable and you can keep on dating them, you very quickly pick one and just stay with that person. But if you date three people and two of them threaten you that unless you go on and continue dating them or they will go away and find somebody else, you keep on revisiting those options. We have a very hard time closing doors.
So, being in open relationships is preventing us from making stupid choices about which partner we pick for the long term. Highfive!
This whole article is rather interesting. In particular, Dan Ariely’s video commentary is, as always, well work watching.