d, depth of commitment.

dd/dt should always be positive, or at the very basal = 0. Here are some limit conditions to keep the equation d = Rt^2 + 5At + 3. Giving dd/dt = 2Rt + 5A

Since d is dependent on the 2 variables R and A, both R and A needs to be positive for dd/dt > 0.

For the above mentioned condition to be fulfilled, a common understanding needs to be established.
1. None of the 2 variables R and A shall, independently do anything to jeopardize the equation
 a.. If ever there were a scenario that R being positive would cause A to be negative and vice versa, either party would have to stop and reflect. And if it were in the minds of both variables to continue achieving dd/dt>=0, each variable would refrain from, or completely stop any action that would cause the negativity in the other party.

2. Both A and R needs to be frank with their own current feelings and insecurities when expressing them to each other. This will have to be sail despite any negativity that might be received upon verbalising.

3. Last of all, Put on Love.