When a traditional marriage breaks up, nobody takes that as evidence that monogamy doesn’t work—so why do people feel compelled to take a sluts’ breakup as evidence that free love is impossible? Your breakup may be for reasons entirely unrelated to the openness of your relationship. At any rate, it probably isn’t evidence that you aren’t meant to be a slut: we suspect you wouldn’t have done all the hard work it takes to live this way if you hadn’t had a strong desire for sluthood in the first place.”