hello to all,
now ls has taken U turn, all what has happened in recent episodes was not obvious but not unnatural, the way dev is behaving and turning negative is not unnatural.. again hats off to anurag basu and story-teller. it is not only dev's unsuccessful first love to shruti that became cause of dev's negative character. things gradually were growing up shaping up in his mind/heart since long and he always feel insecure in presence of akash. he is lonely person in his life and akash makes him feel more lonely(without knowing this, indirectly).though he likes akash to some extent, but akash's popularity, talent..... make him jealous and feel him that life always does injustice to him, u can say some sort of inferiority complex. and when he actually blessed by first love, he would have thought life is not so cruel to him, and there were some rays of happiness, good hopes and and again he was hitted by life and that time again cause was akash. love between shruti and akash was the extreme point of what we can say' feeling of ignorance 'in dev's heart that makes him psychic and violent.
He did not murder bhatti for a girl but it is feeling of ignorance, insecurity, inferiority, and gradually these things become weird in his mind and cause of unusual things.
Hats off to director and story teller who produces such a drama so we can analyze it very well on a psychological ground.