Justin Bieber’s girlfriend of eight months, Selena Gomez, has broken up with him in the wake of a paternity lawsuit that alleges the pop star impregnated another woman during a backstage tryst. A source close to the pair told RadarOnline.com exclusively: “Selena ended it abruptly. She broke the news to Justin just in the past 24 hours.” The insider said Gomez, 19, is facing resistance from the teen idol’s camp who want her to stand by him. “His camp is in damage control mode and attempting to convince her to stick around in the relationship for a few more weeks, because they fear it will be seen as an admission that something indeed took place between Justin and the woman who is alleging that he’s the father of her baby,” the source added. “Justin has insisted to Selena that the woman’s allegations are simply not true.”