There was a time when Japan looked up to China and felt solidarity with it...then eventually there was the Japanese invasion of China and the unspeakable horrors that occurred. That is just ONE of the many examples. Things like this have occurred all over the world and throughout history. Relations between any two nations are never permanent...they r fluid...ever changing and influenced by many factors.
In order to try to predict the future...one should look at the current trends...and see how the direction of the wind is changing. IMO based on the current geopolitical scenario, the rising RSS mentality in India...combined with it's rise in economy and the backing of western powers(due to their own separate interests)...India is gunning to be a regional power and it would find itself running into all sorts of conflicts of interest with other countries in the neighborhood.
In that case...solving it peacefully is all good and jolly but what happens when India tries to strongarm BD to have its own way? Hence why it's imperative that BD builds a decent military capability with some strategic alliances to keep the balance of power in equilibrium(as opposed to tilted in India's favor).
@Avicenna bro I think there are two schools of thought in BD...one is pro India...and the other that anticipates a potential conflict with India. It just so happens to be that under Hasina's gov the pro India faction has the upper hand.