Chris Brown calls Rihanna his old b** in new freestyle; she unfollows him on Twitter

Two days ago Chris Brown dropped a nasty remix on Kanye West's Theraflu, and in the song he referred to an ex as 'an old bi*ch. His lines:

Don’t f**k with my old bitch, it’s like a bad fur / Every industry n—– done had her / Shook the tree like a pumpkin just to smash her / Bitch is breaking codes, but I’m the password.”

Ouch Chris Brown, be nice! :-). Well, immediately Rihanna heard the song, she unfollowed him on Twitter, Tweeting...

How did Chris Brown respond? By unfollowing her back, and tweeting...