Originally Posted by ThatGirlInGray
Out of curiosity, why do you hate the word? It just means your partner's partner. It has nothing to do with sleeping with someone
From my own introspection (not to speak for Matt, but I tend to not use the word, either), I think it's partly because of the way it sounds... "Metamour" implies a relationship with my partner's other partner by virtue of THEIR relationship. It has no bearing on what MY relationship to that person is, and if I don't feel a personal relationship with that person, I'm very hesitant to use words that imply such. It's the difference between calling a person "My sister-in-law" or "X's sister". One term does a better job of keeping a person (emotionally) at arm's length if you don't feel a connection (or if you feel animosity).