I agree Niha! The precap left me fuming like anything! First she is sitting on RaDev's bed! Why? She said she is going to her room...and then lands up at RaDev's bedroom?!! GRR!!
As for Dev applying balm, Dev did it out of formality. He suggested the balm out of formality or as a gesture of friendship as well. He didn't dwell deeper in to her method. Must have probably thought that Barkha is so unwell and thus he suggested an idea...and when she said, pls apply the balm, he couldn't say 'NO' outrightly. Dev is a gentle man and applies the balm out of courtesy, friendship.
But yes at that moment, i was screaming inside my head... "RADHIKA!!!!!"