Abhinav is not worried more than Akshu because Abhinav wasn't the one who was accused, insulted and thrown out like trash 6 years ago by Dr Birla. Abhinav isn't aware of Dr Birla and his mother's actions, except what he has heard from his wife. Akshu has lived through that pain and trauma. And like any good mother, don't want her son to go through the same, if Dr Birla and his mother decide to change tunes again. She also being a loving aunt don't want Roohi to go through the pain of losing a father figure. Abhinav has only seen Dr Birla post leap and has only seen his good side. So he can sympathize with Manyu and may want him to get a place in his son's life. Akshu has seen the bad and worst side of Manyu and is rightfully fearful of his impulsive actions and anger. She is completely justified in her fear and in her struggle to keep things as they are now.

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