Just days before deleting pics of Blac Chyna from his Instagram,Rob Kardashian called her a “psycho b**ch” in a Snapchat video. Chyna had reportedly scratched him with her long nails and caused him to bleed, leading to the name-calling. He said while she was giggling, and "gaze,gaze what she did to me. Crazy-ass.”
Source: extratv.com