Selena Gomez has a new song out called "It Ain't Me" and a lot of people are saying that it's about Justin Bieber. Why do people think that? Well it might have something to do with the lyrics of the song. There's a line in there that says “Somewhere along the line. We stopped seeing eye to eye," And she also says You were staying out all night. And I had enough.”
That would be why people say it's about Justin. Until Selena says otherwise, people are going to continue to think it's a song about Bieber.