Eli Finkel, however, a professor of psychology at Northwestern and the author of The All-or-Nothing Marriage, rejects that notion. “Very smart people have expressed concern that having such easy access makes us commitment-phobic,” he says, “but I’m not actually that worried about it.” Research has shown that people who find a partner they’re really into quickly become less interested in alternatives, and Finkel is fond of a sentiment expressed in good 1997 Journal out of Character and you can Social Therapy paper on the subject: “Even if the grass is greener elsewhere, happy gardeners may not notice.”