I didn't understand why people call him a psycho , he isn't a psycho but a person deeply madly in love.
I even after Dev is doing everything wrong.. but no one is there to guide him.
It's easy to point a finger on someone but facing such situation by yourself is very difficult
When he was with sona, she is the one who show him correct path or he seeks advice from her and before sona, when she is not came in her life...ishwari is there to help him or give advise but right now, he also can't go to ishwari because she is the reason what is happening with him, he is alone and not have any support to show him right path
if u understand dev's character, his miseries, his depth, his complexities, the trauma state he is in, u will feel nothing but sympathy for him.
If we understand the backdrop and nature of dev's character, we will completely understand what and why he is doing?? For a person in his position, it would be difficult even to breath properly!! One side is mom and other side is her love and he doesn't want to lose anyone.
Faking to be brave in front of the world, and breaking down like hell when he is alone, with literally no one by his side!! he lost his only friend in this world.
Also CVS haven't changed his character...if u see dev from starting then u will realise that he was person who can do anything and can go upto any limit to see her mom happy and now he is doing same thing to get sona back...why u all fans haven't raised a question that time about his character... For me, the old and rude Mr.obodro has returned who just listen to his mind not heart. He just changed because of sona and now when she is not with him, his old personality have returned with him.