I can only guess why they hate losing to India so much...I think they might have some misguided perceptions about "Indian Hindus being Weak" because mostly they don't eat meat and that "Indian Muslims are not original Muslims they are Converts" and hence weak.
I say this because two of my Pakistani friends told me these things.
Basically they might think they are Stronger than us and they hate losing to weaklings.
Again dont get me wrong I have many Pakistan friends who don't believe all this.
Seriously? How old are you 12?