This story had so much scope.....a woman who suffered in her marriage....was never respected by her husband and son decides to move out from the house with the help of her daughter. She decides she will work for her self respect. A superstar who had immense love for his wife, one fine day his left him and went away breaking his heart. Both decide to start a business and the business was named shaadi mubarak. This shaadi mubarak should have been focussed on ......they should have taken up different types of shaadi and slowly and gradually come closer. Then it should have been shown that how much difficult for a woman who suffered so much to move on and show trust in someone as husband again. It should have been like how a man with broken heart started to believe in love yet again. This is the story we all were expecting ......a mature one. But suddenly, we have a promo that they both got married. So what are the possible scenarios now.
1) It is actually kusum's dream......in the turn of events......she thinks that if Preeti and KT get married....than that would be good. She already had that marriage idea in brain and thus if it is her dream....it can be justified easily.
2) KT came to know about preeti meeting nandini and gets angry about that. Preeti talks about how she wanted him to have a closure and due to that she met Nandini. She will say things like she couldn't see him in pain and she wanted to relieve him from the pain he was suffering from 17 years. She wanted him to get answers, so that he could move on and it becomes easier for him to forgive her for what all she said to him. She will emphasize on how she was genuinely concerned and want his happiness. And KT be like okay, so you want my happiness. "Meri Khushi Important Hain.....Toh Main Aapke Saath Khush Hoon". And that is how marriage happens.
3) When KT denies the marriage proposal of his ex wife.....the ex wife creates a drama and bring in Preeti and KT equation in it. She insinuates there is something going on in between them and by any chance Rati also arrive there.....than she will try to insinuate the same to build pressure on KT. They be like that if you are not having an affair with Preeti, than what is stopping you from marrying Nandini. And because all these things happened before too and their relation was questioned.....he remembers what kusum said and fills Preeti's maang.
Feel free to add your possible scenarios. I will also keep adding more. What do you feel made this marriage happen.