I'm not shoving my opinion down anyone's throat but when it comes to Paro I get just as defensive as Rudra does so I will come across highly Paro-biased.
For everyone harping on about how Myrah is more headstrong and gives it back to Rudra let me remind you Paro did the SAME - she did not take Rudra's bullshit quietly however she was not in a strong position like Myrah is. Rudra initially easily blackmailed her, threatening to kill her family if she went against his wishes (after witnessing the carnage of the baraat there was no question that he is capable of it or not) - can he do the same to Myrah? No he can't. Myrah through her family's position can manipulate Rudra, the way she did to live in his house.
When Rudra says something about Myrah that is judgmental she is quick to shut him up. Paro did the SAME. She repeatedly told him she wasn't a terrorist or criminal. Also when post "dori-scene" he questions her character, alot of people said she should have slapped and not taken it quietly. Well she didn't slap him - why? because by then she had lived with him a few months and understood his behaviour well. Going back to when in Jaipur both of them are drunk Paro said she knows Rudra is mean to her on purpose so that she would hate him but then she sees the remorse and regret in his eyes which makes her love him more - THIS is why she didn't slap him. She knew he never meant any of it, he said it to make her hate him and so she would leave him.
How easily people have forgotten Paro grabbing Rudra's collar and questioning him when he announced their marriage, how she questions him after he finds out Sumer sold the photos to the newspaper not her. Paro was more subtle than Myrah is and people always misunderstood that to be her passive behaviour.
What Myrah has infront of her is not the Jallad Rudra, who's only priority was his work, that Paro had. Myrah has a tamed, a more self contained and emotionally in-control Rudra who is a responsible father and a head of the family. This Rudra is far more polite than the Rudra Paro initially met, this Rudra is more considerate of people's feelings hence he was less hesitant to apologize to her. This Rudra is weakened by the effect Myrah has on his son, he is touched by Paro's love so there is no question of Myrah setting him straight or making him a better person. There is nothing Myrah can give him that Paro hasn't already, she cannot complete him the way Paro did, Myrah will be the compromise Rudra makes - it is as simple as that.
Paro was strong, she did give it back to Rudra, she was enigma in her own right and she was most definitely his better half in ways Myrah will never be.