I know this seems weird coming from me, but guys? I'm worried about Justin Bieber. As news of ex-girlfriend Selena Gomez's new romance with One Direction member Niall Horan begins to spread, Bieber can't seem to stop himself from posting more and more throwback pics rife with nostalgia-filled longing. The latest? A 2012 photo of the pair holding hands while out and about, posted to Instagram with the caption "crazy throwback."