It sounds stupid and made-up, but it's appeared in text dating from the 17th century, and has been used by Jonathan Swift, Thomas Jefferson, John Locke, and Nathaniel Hawthorne.
"I may misremember indifferent circumstances, but can be right in substance. " -Thomas Jefferson, Letter to John Cabel Breckenridge, 1821
When one starts dating one of the opposite sex, and finds out that her friends are much, much hotter, and suddenly wants to be with the friends.
Dude, me and Rachel totally aren't going to work, her friends are so much hotter and way more slutty than her, and now I'm in the misrelationship and it sucks.