He is such a man, and she is such a woman and when they come together it is like when the hot and cold meet to create a tornado. Theirs is not going to be a peaceful joining of the souls. I liked what you said about Paro's love only capable of destroying him, all this time we are thinking that it is Rudra's love that will destroy her but it really is the other way around because she will be the giver in the relationship and he will be the receiver.
Rudra is the perfect character for psychoanalysis on how two parts of a soul constantly battle one another, diametrically opposed creating someone so fragile and yet strong at the same time. His two sides are just as powerful as the other but it is the balance between them that maintains his existence, but if the scale tips and when one emotion overwhelms the other the consequence is diaboloical to him and others.
Given all this tragedy we all foresee in the story would they be better of without the other. Rudra could have lived rest of his life as a BSD officer just doing his job coasting through life, having what he has with Laila and he is used to living in contempt so nothing new here. Paro marrying someone similar to her and enjoying domestic bliss no upheavels to cause her any pain. So why do we want to route for a couple that might be doomed for certain death. Juliet could only love her romeo and romeo could only love his juliet. If they told them this is how it would end for them it would not matter they would still chose each other and embrace death. Rudra too desperately wants that moment in his life and even though we think he is the one in more need of love, Paro too needs Rudra more than she realizes maybe more than needs her. This couple has many themes, there is shiv sati which means they will live and have a glorious life, othello and desdemona a tragic end where love was just not enough, romeo and juliet their main enemy was their fear of losing the other they would rather die than risk being parted. The three themes, first being where love is so strong that it could not be broken. It stood the testament of time and trials, and set an example for all ages of not just what an ideal love is but what ideal life is. The second theme being love is just as fragile as its carrier, on its own it is nothing, but it is the vessel that harbors it that gives it strength, love and soul strenthen each other it is mutally exclusive but when it is not able to then all you are left with is pain. The third is a love that only wants to survive whether in life or death, death is not a punishment for them and life is not any great gift, all that it matters they are together doesn't matter where.
The story could down either path but whatever the journey it will be a rollercoaster ride for all especially the audience. I won't get too sad about the destination but I hope the journey is beautiful.