Katrina and Ranbir to split due to this girl?

The Kapoor boy's bonding with co-star Nargis Fakhri, is causing trouble between the pair Ranbir Kapoor is moving to newer pastures. The actor is currently fascinated by his Rockstar co-star Nargis Fakhri.While his blow hot -blow cold status with Katrina Kaif continues, Ranbir seems to be cementing his relationship with Nargis.Sources reveal that Kapoor has already told close friends that he '