We all have to patiently wait for around 1 year, by 500 odd episodes we will either experience ultimate happiness and by then RuNak would have had their complete relationship journey (love, marriage, consummation) and then we can peacefully watch the show without any worries for future episodes.
Or we would experience ultimate sadness and by then RuNak would have been seperated forever with their incomplete relationship journey (only love and marriage) and then we will be forced to quit watching the show for our own mental peace.
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