The attraction between men and women usually fades after two or three years.

Neurotransmitters like phenylethylamine and dopamine cannot be secreted at high concentrations continuously. Even if they could, receptor tolerance would develop. This is a physiological law that cannot be changed by personal will.

Then factors such as personality, sense of responsibility, and financial status become increasingly important. In short-term relationships, good looks are always king. In long-term relationships, shared values and goals are more important.

Those who constantly seek lifelong passion need to wake up a bit.