After looking at promo and new ET spoiler I think the track will pan out like this. After kunj reaches on time to stop the wedding yuvi will either use the divorce papers or another way to blackmail twinkle to marry yuvi. Twinkle will have no choice with yuvi's blackmailing and will agree and yuvi will want to marry twinkle with all marriage rituals, twinkle will be broken down and shattered, hence the scene from the segment where twinkle walks alone on the road, and then twinkle will decide to teach yuvi a lesson with the help of leela and kunj. As the ET spoiler says twinkle will do something to humiliate yuvi on engagement day and then on the actual marriage day kunj will use yuvi's trick against him and take yuvi's place at the mandap and remarry twinkle. If things happen according to the the ET spoiler I will be so happy.