contract no more

Suk today in the episode RK told Madhu not to discuss the contract, I didn't understand the dialogue properly, RK asked, "why are you smiling" Madhu said to RK, "why, it's not written that I can't smile" RK said to her "I'm not talking about the contract" then he said something that dialogue I didn't understand it, he said "mein bilai contract samjhayi santao" then he said band karo meaning to stop that, so I took that to mean he doesn't want her to refer to the contract at all, so it's a marriage with the contract having no effect on that marriage now.

But now the promo is showing RK is referring to their marriage that he is not her full pati so no need to fast for karva chauth for him. So I'm getting two different meanings from this, I think I should wait for the episode of the promo and everything will be clear.