Justin Bieber and Selena Gomez have been dating for a little over a year. Their relationship has been filled with special dates, romantic vacations and lots of PDA, but their relationship may have come to an end. Justin sent out this tweet yesterday, just simply saying, “Thank you for the time I had with you but I have to move on now.” The tweet was deleted shortly after that but everyone started speculating that Justin and Selena must have broken up or, even worse, he dumped her via Twitter. Sources say that this split should come as no shock. They’ve grown apart due to their hectic work schedules. Lately, Selena’s been working on a film in Bulgaria while Biebs is in the States working on his new album.