Katrina Kaif insists she is very much single! To be or not to be, forever or one night stand, hush- hush affair or just friends; these were what playing in all minds when eagle eyed shutterbugs caught Katrina Kaif red handed entering Ranbir Kapoor’s home around 1 am at night and which was obvious to hit headlines. But so much single Kats has to say something about it. Katrina Kaif, who always has named it just friends with vintage juvenile philanderer...