7th vachan was Atharv will come back - CHECK
6th vachan was not allowing anything or anyone to come between them, not even death - CHECK
5th vachan - They will always be honest with each other, nothing will be hidden - Isn't it the most honest relationship of the show? No lying, no hiding.
4th vachan - We will share every responsibility equally even if we end up arguing, we will make up by the end of the day - Vitharv acting as partners in crime.
3rd vachan - when one falls weak, the other will be their strength. In this condition, it's Vividha who is taking care of him, making him happy in the truest sense and Vividha still relies on his presence - physically and mentally.
2nd vachan - We will trust each other completely. No matter how far we are from each other, we will be together always - Do either of them flinch when the other tells them to do something? They just do it because of the silent understanding. Vividha takes his words more seriously than anyone else's!
1st vachan - We are bound by love, no restrictions no conventions can change that and we will walk together as far as we can, always...
So subtly these vachans are already being played out.