When he didn't inform ma about Sona ,mamaji told him and then in hospital also he was the one who told dev that his mom hasn't accepted Sona. What did dev do he just broke up without a second thought.
But then after that mamaji told dev he should not let go of her and all that. In yesterday's epsode also he told him a story to explain what is going on in ishwari's mind.
My question is when he knows her thinking is wrong why doesn't he ever tell dev that. Why doesn't he tell him that it is OK to call Sona's mom Ma. Just make sure u tell ishwari how special she is.
Atleast Dev will think in those terms. Not sure if I made sense.