Before he asked Madhu to jump off the terrace and prove she loves him, he said she must not love her mother or listen to her, he said soon after that she must vow to rather die then be separated, all right concerning Madhu must be solely with him only. That her parents have no more rights to do with Madhu.
I'm remembering that Ashique pistoli comment to Padmini, he said she sent Sultan (referring to him as a pistol lover...😆). He also knows Padmini would rather have Madhu separate from him. So it seems to me RK fears Padmini will encourage the Sultan relation...and perhaps it seemed to him during holi celebrations Padmini didn't intervene when Madhu was playing holi with Sultan, Sultan also told Madhu with the pistol when he stopped them that her mother was concerned that RK had taken her by force, making it seem to RK that Padmini confessed her fears to Sultan and requested him to go and rescue Madhu. Which is not what happened if we remember it was Trish and Padmini discussion that Sultan overheard and he left the money and stormed off.
Meanwhile, Padmini also said to RK that he shouldn't call her sasuma because she would rather have people pick up stones and pelt her...hit her on the street. 🤣 This Saas Damad relation has always entertained me, from the first moment he made her act under the spotlight and gave her the money as she is his saas, and she returned the money to say since he regards himself as her damad, she will give him the money as nec.