Did Niall turn down Selena to avoid a fight with Justin?

While Justin Bieber and Selena Gomez are trying to work things out now, new info has come out about her attempted hookup with One Direction's Niall Horan back in December! When she and Justin were on a break, sources say Sel's BFF Taylor Swift (who was dating Harry Styles at the time) tried to match Selena up with Niall. But shockingly, Niall turned Selena down. "He knows dating Selena could have prompted a war with Justin," an insider says. Juicy!