But since the time he came to know, he didnt force to get a father for himself.
After that the main reason for Su-Yuvi's marriage was so that the kids could remain together.
So how can Su marrying Sammy keep the kids together ?
What rubbish, cv's, shaadi gale utarwane ke liye kuch bhi karenge ? Anyone from Bhavna to Pankaj to Prats, couldve explained to Yuvan that if Su marries Sammy then he will have to leave with them and stay away from Yuvani, Krishna and Golu. I am sure he wouldve understood. As it is Su never wanted this marriage.
Just cause they want to show this marriage, and they couldnt show Su agreeing to it. They made Yuvan go back to his earlier stance, and no-one was ready to calm him down. While Sammy took the chance to influence his young mind.