But Why?

Its a curious thing that I've noticed amongst Indian Males.

He: Do you have a boyfriend?
She: No
He: Do you want to be my girlfriend?
She: No
He: But Why?
She: ......

They may have lost all interest in the girl the moment she said No, or maybe even before that, but the Ego of a Typical Indian Male, just doesn't allow hearing a No from some Girl...