Justin Bieber and ex, Selena Gomez slam each other on Instagram over his new girlfriend [PICS]

After Justin Bieber told fans to stop the hate comments about his new girlfriend on an Instagram post, his singer ex-girlfriend, Selena Gomez told him in a comment on the post not to attack the fans who has stood by him through out his career, Justin didn't want her involved in his relationship and lashed out at her...during their back and forth banter they finally decided to reveal why they actually broke up...