"The number you dialed is unavailable. Please check and dial again..."
I clearly know that this number will never appear again, and I can't answer your boring voice greeting, but why, in the past four years, I still can't help but dial it, hoping that it will be connected, even if it is someone I don't know, so that I will not feel that everything between us has never existed, it is just my fantasy.
Because all I have about you is this number.