Aditya should be shown as remorseful , not for loving imile, but for hurting, rejecting and making a mockery of malinis life.
He suddenly want to continue his relationship with imile, he want to fulfill his responsibilities towards imile, in his lala land he is forgetting that , he is literally tearing apart Malins life.In the entire truth reveling scene it would have been better if he showed some remorse, some shame , in admitting to the woman he loved and married willingly that their relationship has ended , he is moving on to another whom he deems perfect.
In that scene his priority was to just say the truth and make her accept his decision .He knows how emotionally fragile malini is .He has the audacity to say to her that he knows that she is feeling bad, she is not feeling bad but literally dyeing. For me worst dialogue was him pointing out to her that she isn't his legally wedded wife, only a second wife with no recognition.Did he pause to think who made her a second wife to him?? As malini asked he married her consciously right??if aditya have shown a bit of concern for malini it would have been good .it would make him more likeable.
And malini should not think on the line of imiles sindoor so soon , her concern should be how he deceived her into marrying him withholding the truth, how he made her a second wife ,how utterly callous and shallow he is how to people she trusted played with her emotions.