In my mind I don't think Raj is confused ; first Raj was angry with Divya for leaving / and with her father and family for forcing him to get married. Sarita , he just ignored and almost didn;t exist hor him . As he had only performed the ritual of marriage and not really accepted the marriage and I guess he also wanted to teach his father a lesson that by forcing him in to this wedding -- he could not make him actually accept it . . Since he was mad about the whole situation and was just existing and not really living --- nothing really affected him --- till Divya came back to town and he could hear the news about her wedding etc -- etc .
As regards to Sarita , he did not love and does not love her even now but Divya had made him feel guilty about his behaviour towards Sarita. So now he is paying more attention to her and eventually may get attracted towards her . But even earlier he was shown to defend Sarita when one of the aunt's called her banjh -- who can not have kids etc . At that time also he told the family not to truble Sarita . ----- just my interpretation of his caharcter so far .