The way Rudra is like come take my hand, let me protect you, married me! You don't have to singed that paper while watching the segment that's what comes to my mind. Paro told her god has send her protector (in her POV Tejawat) but Rudra confessed to her by saying foolish girl your protector is only me and only I can save you.
This day is coming and Paro have to see danger infront of her, I fell Thakurain might be the one to save Paro and get to know that she's Rudra bride due to the bangle which will play a role.