tragic but fitting end

I watched this last night and thought about the ending and why Radhe mustered a little smile whilst sitting besides Nirjara's body. He was finally understood by someone. He'd told her he couldn't stand the thought of her and Rameshwar and it would have been too easy for her to have married him and lived a passionless life but she didn't. She chose death and in doing so understood Radhe like no one else ever did.