'Ranbir is still possessive about me. He doesn't like me talking about others,' Deepika told reporters here at the first look launch of their film 'Yeh Jawaani Hai Deewani'. The pair last worked together in 'Bachna Ae Haseeno' in 2008. 'We did all the permutation... chemical combination was tested before we agreed to do the film (sic),' she said.