Why is the Rockstar couple maintaining a distance?

It is heard the the Rockstar couple, Ranbir Kapoor and Nargis Fakhri have been maintaining their distance from each with the fear of being linked as a couple.

There has already been rumors about the two dating each other, ever since the making of Rockstar.

At a recent party thrown by KWAN, a celebrity management company, at Grand Hyatt last week, both Ranbir Kapoor and Nargis Fakhri were seen. However, the duo maintained their distance. Immediately after the perfunctory greeting was over, the two went their separate ways.

Ranbir and Nargis later came together for a picture.

Source:http://bollywood.celebden.com/2011/11/why-is-the-rockstar-couple-maintaining-a-distance/