SALLIE, 31, lives with her girlfriend, but she also has a boyfriend she spends just as much time with. The nonprofit worker occasionally has other partners on the side as well, as does her girlfriend.

We recently had a defector in our polycule and are seeking a new member.” A link at the bottom invited anyone interested to ...

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I’m starting to wonder if I’m just not built for “normal” relationships. I’ve tried dating in the traditional way—looking for the one, picturing a future with just one other person—and it never feels ...