Deepika, Ranbir relationship on the rocks?

Everything doesn't seem well in Deepika and Ranbir's paradise! The petite beauty was recently spotted with a mystery man in a multiplex watching Ghajini. Rumour mill is abuzz that the couple have been fighting over petty issues of late. After her break-up with Nihal Pandya and Yuvraaj Singh, Deepika Padukone was going strong with Ranbir Kapoor and was quoted saying that "she wants to be Mrs Kapoor in 4 years". Although, Ranbir Kapoor's mom Neetu Singh isn't very fond of Deepika Padukone. She was quoted as saying that "Deepika is just another girlfriend for Ranbir". Let's see if this relationship moves further from here.