It's nice to see this side to Zoya because it gives us more character insight apart from her usually bubbly ways. This shows us that there is depth in her character, that she has so much tragedy in her own life but chooses to put on a happy face and live life to the fullest no matter what her pain.
The dialogues were fantastic too...I loved Dilshad's analogy about letting the windows open and letting the cool breeze in to alleviate the pain and sorrow...it sounds better in Hindi/Urdu obviously...the translation doesn't do it justice.
The one line from Zoya that really touched my heart was the bit where she says, 'Maa ki jagah koi nahin le sakta"...Surbhi enacted that bit really well.
The bonding b/w Zoya-Dilshad is lovely...hope to see it continued.