he's angry with his mother for marrying a criminal Kukuji (he told everyone tht kukuji spent half of his life in jail) who was not a father figure to RK ..he and his son and mrs junior bhatia turned out to be parasites who wanted to use RK for their selfish reasons..still living on his mercy , plotting to harm him and his wife every moment...his mom kept mum n never protected his son, never spoke for him, she was never there for him, she wanted RK to accept bhatias n they all live like a happy family ...he still cares for his mother otherwise why will he let all of them live with him ? the magnitude of his hurt can be imagined frm the fact tht he distanced himself frm his mom all these years yet craving for tht love and affection...he respects Padmini and Malik for the way they took care of Madhu and Trishna and not give priority to their personal life ..Padmini cud have married Malik, just like Radha, but she didn't do it ..now, she and Malik deserve tht happiness bec. Padmini's children will be settled down very soon.