Ranbir asks Kat to stay away from Deepika

What is this happening? Why doesn't Ranbir want Katrina to be around when he is shooting with his ex girlfriend Deepika Padukone. Katrina is a bit free and relaxed these days as she has wound up the shooting of Bang Bang with Hrithik. Then they were togther shooting for Ranbir's home production Jagga Jasoos in South Africa. The couple had a nice time together for around a month. Now Ranbir is to start shooting for Imtiaz Ali's next in French Island of Corsica. He has asked Katrina to stay away while he is shooting for the film.