I would love to see her speaking in English and leave Sin and Sagar searching for words, but lets be realistic, its not even possible for a dedicated person like Vidya to learn English in 3 days..I rather believe that she's going to some sort of finishing school where they teach her how to make simple conversations in English, like "how do you do?" "enjoy the party" etc. and read/write in Hindi (assuming thats much easier!) and concentrate on etiquettes, manners etc...
I would love to see Sagar's face when he gets his laptop..I was furious the way he went about blurting out the specifications...but forgave him when he said sorry for his behavior...when would he realize that he is truly incomplete without her...the writers are doing a great job..I love the subtle analogy between person without Vidya (education) and flower without fragrance. it also can be interpreted as Sagar is incomplete without Vidya...he's the flower and Vidya is the Khusboo....