These two lovebirds have been an on-again, off-again item since 2010. And while they used to be cute and drama-free, things have been way more complicated lately. Aside from all the problems that seem to be wherever Justin goes, Selena seems torn between her old beau and enjoying life as a single lady. "He and I have had such a history together," she recently said about the Biebs. "I'll always care about him and protect him if anyone tries to be mean." That history is probably the exact reason that these two just can't quit each other.