My guess is Anjali. Till now this both have shown good bonding and Anjali knows in spite of his flaws Arnav is genuinely in love with her sister.
I didnt take Anjali into consideration. Maybe, she is the key between Arnav and Khushi.
Good one, Srain. đ
Btw, what do I call you? I am Ecrivain, you can call me EC.
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