Varun’s character development is so, so important. After arriving at Pakhi’s Dalhousie house, he decides to leave once more. He’s full of emotion at this point - confused, regretful, and wondering if he’s making the right choice. His accomplice calls for him but Varun is lost in his own thoughts. You can see the pain in his eyes as he struggles to make the right decision.
And during this part, the song Shikayatein is playing. This lyric, especially: Turning the looters into protectors. I think at that moment, Varun knows what he has to do. He has deceived many people during his career as a robber. Especially the girl he had fallen in love with. He turns into a protector. He goes back to Pakhi’s house. He doesn’t want to run away anymore.
He tries to make up for his wrong doings, even though he knows she will never forgive him. He makes her tea, he takes care of her through her illness, he goes out into the cold to chop firewood so she can stay warm. Varun knows Pakhi hates him - she makes it clear more than once. But he chooses to stay.
"Everyone in my life used me, only you loved me," he tells her. She confesses that she has stored her life in the tree, dying when the last leaf falls. But Varun creates his masterpiece, one that the world, his world, Pakhi will never forget. He gives up his life happily with a smile on his face.