It was Ranbir who drunk dailed Katrina! Ranbir - Alia ka Marad ∞8∞
Alia being the best girlfriend ever just took the blame. Probably Katrina didn't even pick the phone so they got really butt hurt and clarified it was alia and karan who was drunk and watching stars.
Ranbir watching stars and calling katrina on the night of her wedding is more believable.
RANBIR REALLY REALLY LOVED KATRINA. Its all in his eye. He just settled for Alia. Ranbir knows Katrina from A to Z. It didn't work out because Katrina can't handle Mamas boy, who is immature, lazy and drunk. Some men only realize how much a good woman means to them once the woman gives up on him. Katrina gave him so many chances. She tried to change him. She didn't feel jealous or anything even when Alia got closer to ranbir because she gave all her best and broke up.
Ranbir with his ego and laziness didn't see the value of katrina and her love. Instead he always tried to make fun of her.
After katrinas wedding alia realized that ranbir is still not over katrina. So she promised her a baby which none of her exs could give him. So in January ranbir proposed to her and now ranbir understood his faults and doenst want to repeat those mistakes he did with katrina. Because alia truly is obsessed with ranbir.