By Olivia Wheeler Coronation Street viewers could be saying goodbye to one fan favourite character on the hit ITV soap next week. Soap fans will recall that troubled youngster Lauren Bolton abruptly left the cobbles earlier this year and love interest Bobby has been left concerned after he found her flat unlocked with Lauren nowhere to be seen. Soap fans never saw Lauren, who had a mysterious boyfriend prior to her exit, leave and it seems she told no one close to her of her plan to leave Weatherfield aside from Roy Cropper. Bobby reported Lauren as missing to the police and Roy has found hims…