Same here! And someone mentioned that it's symbolic..Asad, even when he doesn't know, is making his sister comfortable--a safe place amongst the wolves in sheep clothing! Najma is supporting her and so is Asad--Nikhat found shelter, refuge, and strength from her brother (Asad's room).
Well said that Asad is helping her even without knowing through his room and even at the dinner table, his chair is making her more confident