The first time he did the dulha swap twinj did not love one another and neither were they happy with their marriage yet kunj still ran for his life to stop yuvi simply so twinkle's life would not be ruined, but this time he and twinkle love each other and kunj is now running to save the love of his life. Maybe cv's want to bring a shock factor to the show by showing kunj fail this time? I'm not trying to be negative but rather just pointing out facts.
Secondly if you guys saw the precap it showed kunj running to stop the wedding and it showed kunj at the wedding arrive in full on sherwani and yuvi unveiling himself like in the recent segment, which is odd as why would kunj rush to stop yuvi but only come after changing his attire 😆
This shows that the mandap scene in the precap was only twinkle's dream like a recent spoiler said, but why would twinkle end up marrying yuvi after imagining yuvi under the sehra? She would have been so freaked out by that dream that she would stop and take off the sehra to see who it is. I'm damn confused...