I don't think Madhu will ever use anyone to fight with RK.. or to fight with his complicated heart...
She never brought anyone between her and RK.. not even her mom and her family...
But yes.. Madhu fighting or doing what ever for RK doesn't mean that she will be thinking only about RK.. she may thing a bout Aaryan.. her family and Sultan..and may do things if her heart tell her to do so.. Even before also she always did like that only... She did something for Radhaji.. she did something for Bittujiji.. she did something for Trishna... so its her nature.. So i don't have any problem if she she show worry for Aaryan eating vegetables or not...
Using someone is not in the nature of Madhu.. so far they have shown...
@red...
As per the articles.. we came to know that Padmini is gonna disown Madhu.. So may be Sultan will play the role of a Well Wisher or as a Good Freind.. so that she can maintain the connection with her family...