After We Fell Out, I Moved in with My Best Friend's Ex-Boyfriends

Who could have guessed that after falling out with my two best friends, I'd end up living with their ex-boyfriends? Back when the three of us were still close, we often joked, "Triangles are stable, so our friendship will last forever." But in reality, "when three people are together, one is always left out." I was cheerful and outgoing, and a real chatterbox. Although I often sensed that the two of them were closer to each other, my overwhelming urge to talk, and the way they listened so attentively, always made me forget about it. I thought we'd stay single forever, until they each got boyfriends...