Inside Scoop: Who was responsible for Ranbir and Katrina's big fight?

There have been numerous versions and details of what really went down between couple Ranbir Kapoor and Katrina Kaif at Vancouver, after the TOIFA awards. While some publications alleged that they were spotted shopping and romancing on the streets of the Canadian town, others claimed they had a heated argument and didn’t quite get along.
We have now got exclusive information of what actually happened between the two actors. As well as all the juicy details from an insider who partied with them.

As per our khabru, Kat was in a foul mood the moment she landed in Vancouver. Apparently, RK hadn’t been nice to her over the last few weeks leading to the award ceremony and it had dampened her spirits. In fact, reports of her late night visits to his Bandra pad only substantiate that Kaif is going all out to make sure that their relationship works out.
  

Throwing light over the big fight in Vancouver our source reveals that the tiff revolved around another actress and it wasn’t ex-girlfriend Deepika Padukone, who was previously the bone of contention between the two.
  

“After the awards ceremony there was a small party in Ranbir’s suite which was attended by the likes of Katrina, Anushka Sharma and some of her entourage. While Kat and Anushka are friends, they have never hung out or spent time knowing each other. Anushka and Ranbir on the other hand have managed to stay friends ever since they met,” says the source.
  

Katrina didn’t like the fact that Anushka was getting over friendly with Ranbir at the party. “She tried to hide her dislike for Anushka, but it didn’t last too long. As soon as the Band Bajaa Baraat actress returned to her room in the morning, Kaif gave RK a piece of her mind. She told him that he needed to stay away from Anushka and instead focus on making their relationship work,” the source further adds.
  

Buzz is that Kat is also insecure of Deepika and RK going on a world tour to promote their upcoming release Yeh Jawaani Hai Deewani. Despite their big fight, our source adds that Ranbir-Kat patched up immediately and had a romantic flight back home. Word on the street is that this is probably the most serious relationship Ranbir has ever been in! We guess, only time will tell if this couple makes it or has a similar fate as RK’s previous relationships.