Dev and Sona were yelling at each other on top of their voices. Then we saw Asha who was somewhere trying to understand Dev's perspective and she tried putting across sona's perspective but sadly Dev was in no mood for a conversation. Again they fought and in the precap we saw Asha putting some sense into them and asked them to sort out their issues and be a team.
Now Ishwari- I can't recollect once where Ishwari has done something like this. Remember the scene where Dev and Sona had a major fight and Ishwari heard them quarrelling ? I still remember she maroed some hi-fi dialogue like " Mere mandir jaise ghar mein kya ho raha hai?" Something like that and she conviniently blamed Sonakshi and asked her to leave Dev. The point is she never valued relationships, she never bothered about anyone but herself. She never tried to understand someone else's perspective.
That's the difference between Asha and Ishwari -both are mothers and both talk highly about respecting and maintaining relationships but here the former practices what she preaches and the latter only preaches.