She probably thinks of Jagya's marriage as something that will come in between her and J.She thinks that her relationship with Jagya may change once he gets married.That's the reason she was not so happy when DS said that she wanted her to take care of all the arrangements.
But when DS suggested that she also should think of getting married again she looked very disturbed.I don't think she likes the idea of getting married again.She probably is not ready for marriage.
She misses him when he is away and finds excuses to call him.She doesn't like his growing closeness with Sanchi.She probably is falling in love with him.And I don't think she even realises that her feelings for him have changed,
She likes him and her current state of life and her place in his life but at the same time she is not apparently ready to get married again.