We have seen at least 2 clarifications from Ranbir. I am also wondering whether this is for Ajab publicity. As far as I remember Deepika didn't land up in Bhopal but they left together and Ranbir even talked about how it was nice to have her there and how they try to make time for each other.
Shabina Khan's party was the same day as Karan's fashion show and there they were smiling and posing together. I also feel this is TIPS publicity for Ajab prem. They did it before for Race and Kismat Konnection.