The CV's directed RK initially today to be hesitant and also to be stiff in the first hug, also his expressions when holding her were not of a man wanting to make love to his wife (take it to the next level) but were just mild interest staring that's it.
Then the bomb in the precap what he said to Dipali. That in a few days he plans to stop the natak of playing a good husband and start new relations, I think the CV's are trying to bring some mystery in RK's character, as if this saazish that it's all part of some bigger plan to hurt Madhu by RK. 
I'm not saying she won't be hurt, she will be but it's not part of RK's saazish. I think RK is madly in love with Madhu, the work he has done to make Padmini realise that he was wrong in Mukund's case and that Shamsher Malik was right to protect Madhu and that she should forgive Malik also in the car with Madhu and Padmini in the backseat the same he was reuniting a daughter to her father, and you don't do that to a person that you want to do some revenge on. Second his love confession all those things he said, okay the expression he can fake as RK is also an actor but how about the small things about Madhu he picked up on to tell her this is the reasons he loves her, so many things about her he loves, those things he would not have noticed at all if RK was not madly in love with Madhu. 
So for me the "pretend revenge track" if it comes into play here will only come in when RK is injured seriously and wants Madhu to not be saddled with a cripple and to send her away he will tell her he never loved her.
The precap is just to distract Dipali from the real reason that they are leaving he knows sly Dip's will do something to disrupt their plans by harming Madhu either by saying something that will cause Madhu to fight with RK or by feeding her something and he knows Madhu is too innocent to handle Dipali. Didn't Dip's instigate him the day of the confession also, so his seeking to manage her, but I feel it will fail just as she instigated RK, again she will say all he is saying to her to Madhu (what's stopping her, she's her enemy), and Madhu will start to doubt RK, hopefully I'm wrong, but it would have been better if RK had just sent Dipali out of the room, or send Madhu earlier to their destination, where she won't be harmed by Dipali. Perhaps Madhu will fight Dipali and not listen to her stirring trouble between her and RK.