I was looking intently at both RK and Madhu when the fans were talking to them, when they just turned up RK was a little annoyed already just having them there, but he kept it together and did the customary photograph with them and was preparing to sit they requested autographs he did that, but that single photo with Madhubala only got under his skin it reminded him of the premier and if fans and the media are putting Madhu as the bigger superstar then he is himself. He recognised her talent and now everyone else does too, and he cannot return to how he was a loving husband, supportive, attentive if he is feeling like he is not the chief breadwinner in the house (he has to earn more then Madhubala), he has to wear the trousers in the relationship, that's a macho trait, but very common with our men. His smarting because his ego is bruised by Madhu's fame. He is distancing himself from Madhu because he feels she is more famous and will leave the housewife responsibilities and be an actress in a short while.
Madhu didn't tell the fans that she won't do another film because she was only concerned with what she was reading on RK's face then that he feels she will leave him and work in bollywood, she cannot refute the fans wishes and cause them to go into hysterics begging with her to do another film. That would have happened had she said she isn't doing another film and if the fans start pestering her to do another film RK would just be fuming worse, and if he changes his mood to completely fuming no telling how the evening would end up, so she is managing RK's emotions there. That's what I felt, by staying silent.