MUMBAI — Rumors mills are abuzz about Ranbir Kapoor and Katrina Kaif's relationship hitting the rocks. The pair was, however, spotted partying together at director Kiran Rao's residence last week, NDTV reported. A source close to the actors reportedly said that they only had a minor tiff and that every couple goes through it. "They have been together for the past four years and they won't break up because of a small argument." According to rumors, the couple had a fight during their holiday in New York and that they didn't get along during their shoot for Anurag Basu's film, "Jagga Jasoos." — SG