"Their main problem," a source revealed. "is Justin has a wandering eye."
This isn't the first time we've heard rumors about jealousy within the relationship. Several stories revolved around Selena's "trust issues," which really brings up more questions than answers about the 'Boyfriend' singer.
We always thought Selena was such an amazing score for him, right?
If these two crazy kids can't make it work, here's a list of four eligible bachelors the very pretty Selena could absolutely date if Justin proves to be a thing of the past.