Katy Kat extended her claws to protect bff RiRi, but her move backfired and created a wedge between them!!
Just as that televised embrace began the CB/Ri rekindling, it may have spelled the end for her friendship with Katy!!
The Diamonds singer bailed on Katy's b-day party while Katy was mysteriously absent from Rihanna's huge Halloween bash.
One source close to the situation revealed why the Fireworks songstress has had enough of this game, saying: