maybe I am nave Arshi but she does love Saras. She does not say it as often, she isn't as expressive but she is nothing without him. Her existence ceases when he is away from her and we have seen this time and before.Yes she takes him for granted when he is around but because she has faith in her love for him. She does not need to express to him and be all romantic because their love is beyond that.Remember the day he said he won't marry her, She died. The day she married Pramad, she died. The day she thought Saras married Kusum, she died.Saras's death will kill her.And that day we will mourn more for her than for Saras because like you said our Saras will always be our hero and to live without the person you love the most is far worse.