I felt when watching today, that because Madhu refused to be with RK, that she can't trust him, he doesn't want to argue with her and hurt her more.
All the scenes of them today, it seemed he didn't touch her to comfort her by the rocks, didn't touch her bag to help her, stopped himself in time both times because he doesn't want an argument with her.
When he waited for her answer to Bittuji about going to the car this struck me, that his waiting for Madhu's lead.
Because I felt had Madhu agreed to go into the car, RK was going to abandon the shoot and follow her into the car, because had Madhu agreed then, it would be a green light to RK that she is willing to be with him and take his protection, care and love.
When he sent Bittuji with the water earlier and watching her on the pretext of talking to the director just outside the tent, it's like his comforting her and not Bittuji then, he really want to care for her, and he always will protect her, but he seems to be waiting for Madhu to agree to be with him.