Yesterday even I was thinking that how come RK turned overly romantic suddenly. Then I realized that RK fell in love and realized his love for his Biwi the night when she was shedding tears for him surreptitiously besides him on the bed. That was the moment RK lost his heart to this Doe-Eyed Beauty. Madhu's love and respect for Maalik, and most probably Malik's definition about Madhu's golden heart and her simple dreams, brought RK face to face with Madhu's golden heart and made him respect her and admire her beautiful relation with her Father Malik. The two days absence and Deepali's seduction act was the moment he has realized that he has fallen for Madhu. He was a total goner when at the end of the "Raat Akeli Hai" song with "Hum Hai Deewane" playing in the BG he held imaginative Madhu in "The RK Pose" with his one hand in the sling, and was getting anxious to remove the fringe from her face which was stopping him from admiring Madhu's beauty thoroughly. And when he splashed water on Madhu by mistake followed by Madhu's mock anger. Did you see how RK was quivering and gave in to Madhu for a split second, that was RK surrendering himself and his heart to Madhu. That is the sole reason which compelled him to share his dark hidden secrets with Madhu. B'cos he could have told Madhu in simple words that he knew everything about Malik beforehand and did not wanted her to get hurt, he need not have given her his flash back story and his life history,it was not like Madhu asked him about his life and relations in his life.. But still he preferred to do so, b'cos he wanted make Madhu the internal part of his life, and we share our deepest and darkest secrets from which we keep running all through our life only with the person we trust and love the most. He gave Madhu the most important place in his heart, that is why he shared his story with her, protects her, forbids her to return to chawl to find truth about Malik, saves her frm Deepali and Bhatia Group. He gets angry at her, b'cos he gets scared thinking that has Madhu realized his intentions that he has fallen for her. So he goes two steps back. But going two steps back and creating distance btw his Biwi and him is more like burning in the non-stop fire of hell and equally tortuous. So he decides to give in, on top of that Bittuji's lecture and Madhu's cute antics and all that staring and smiling played catalyst for pushing RK more towards Madhu. It was clear from RK's words yesterday, that though Madhu's constant staring and smiling throws him off balance, but it certainly does not means that it goes unnoticed and he is not that dumb to not figure out that what does it means. Though he planned the romantic KC date for Madhu to make up to her for all his shouting sessions at her. He did not plan to get that romantic and the upcoming almost kiss was not planned it was more like, give in to the moment from his past observation of Madhu's behavior and her submission to RK's love without any words. Sometimes true love need not be expressed it just needs two people to feel the mutual feelings of heart.
I hope I made some sense via my post and accomplished my aim of putting forth my point mre clearly and more precisely.