Fabulous post!
Totally concur...I too am sick of seeing Khushi and Arnav's story getting sidelined ever since the kidnapping track came to an end.
After Shyam was gone, they never bothered to show even a single episode of regret and remorse on Arnav's part for having put Khushi through everything...they immediately jumped to him romancing Khushi and the Didi Ki Saut track with Anjali constantly ruining all their romantic moments.
Then they showed Khushi behaving weirdly for the wrong reasons, running away from RM and Arnav bullying and blackmailing her into coming back! All this without any emphasis on his realization of how much he has hurt her and needs to make up for it.
Finally after a lot of time they came to the remarriage track and they decided to forcibly interject Anjali's drama in the track and the last straw was this miscarriage horror, along with Shyam getting a free pass to do anything he pleases, and yet not getting caught after more than a year of villainy! And there's more to come!
Very frustrating!
During the episodes last year, when ASR was with La, I would wonder when they will show the Arhi in love - little did I know that they would ruin the most anticipated track and sideline the main leads' story!