Is Khushi's behaviour towards Arnav justified?

Opinions differ- Few of us are liking the way how khushi is behaving with Arnav over her birthday wishes.. Some are not approving.. why make Arnav say it...

This a work of the creatives .. and thats how they have portrayed the character of Khushi - each of our mind works differently.
If were to direct a oneshot of this episode.. i wouldn't have made Arnav realize. He is Arnav singh raizada.. he has his own strength and weakness.. Every weakness of his cannot be changed or reformed. Yes he is arrogant and ruthless. But he has his own way of handling his emotions.. and how he handles it.. He cannot express it because he has a troubled childhood and his grey shades of character is reflected just like anjali.

Khushi is no paragon of perfection.. so why should she induce him think like her? Thats not right. In a relation and affairs of the heart-- it is better to make the other at ease and be oneself rather than impose him or her to their liking.

Arnav has to realize on his own, realize that his ladylove does not like expensive gifts and that she is simple and enjoys simple things in life to make her happy.