Ranbir-Alia-Deepika-Katrina-Salman The Messed Up Relationship

Did you ever understand the so called friendship between Katrina, Deepika, Ranbir, Salman and Alia. To begin with its not hidden, that Katrina was involved with Salman, then Katrina got in a relationship with Ranbir, who was apparently dating Deepika at that time and cheated on her with Katrina. Alia and Katrina used to be best friends but now Alia and Deepika are even closer. And let’s not get into what bond Ranbir shares with Salman now. Phew! all this is so confusing, am I forgetting anyone in between ?