According to Us Weekly, Karrueche was Chris's date to a fashion party in Hollywood on February 12, which Rihanna wasn't pleased about.
That's why, when Rihanna and Chris both happened to be at Playhouse nightclub the next day, Rihanna refused to be seated near him, and she never spoke to Chris at the event. Sounds like Rihanna doesn't feel like the only girl in the world.
"She refused to sit with or even near him," says an eyewitness. "When she noticed he was there, she made a huge show of rubbing her presence in his face." Way to take the high road, Rihanna.
This comes on the heels of RiRi and Chris looking quite lovey-dovey last weekend at the Grammy awards.
Then again, knowing these two, things might change completely by tomorrow. Good luck trying to keep up!