Originally posted by: inlieu
I think this is deliberate. Raghav is dying to become closer to his family but they are not that caring of him. Their love is conditional, I'd argue even Amma's feels borderline to some extent. With Pallavi, I think only Nikhil genuinely trusts and adores her and even though he's young he's always got her best interests at her. I don't now about Aai, I will reserve my judgement. 
But yeah, I've said this elsewhere too. Siblings always have their own bond regardless of what the relations with the parents are like. 
There's a reason why Raghav reacted so so strongly to the scandal. It was the first time Keerti asked, no begged, him to help. She was down and out and reached out to him without hesitation in the jail. He asked her if she trusted him and she nodded. Where did that trust go overnight?
I don't see any warmth there. Heck if I were in her place and had a brother that I'd been estranged from for 10 years I'd be curious, I'd try or at least put some efforts in after what he did to protect her. 
Have you ever seen them talk? No. He doesn't want or need anything from them. He's not even asking them for love and care, just their physical presence in his life and house so that they are always in front of him/around him. She can't even be bothered to bond with him? Even housemates start to bond over time... Ugh... My heart breaks for him. 
I would hope one day Keerti starts to trust Raghav and tell him her problems, secrets, etc. But no, this is ITV so only mahaan Pallavi will have that honor! 😡