Even all what was happening shows that at this stage, Riddhima really wanted to test him to assure whether his love for Riddhima was ever pure or not instead of trusting him.
Vansh was first planning to disappear somewhere eventually but then he desired to even breathe his last in front of Riddhima.
He was just thinking all this when Maahi appeared, "What are you thinking?"
He said, lying for sure, "About how beautiful you'll be looking tomorrow."
He was indirectly referring to these words to Riddhima, "Oh really?"
His eyes started imagining Riddhima, "Yes. After all, it's going to be the most special day of my life."
It was really going to be but not for him, "Yeah, same here."
They were both looking outside the window and for a moment, Vansh really felt Riddhima standing there instead of Maahi.
Vansh said in his heart, "Maybe she is really happy to marry him. If she is really happy, then it's okay that I am now broken and sad."