How long is a cat's lifespan? Not long.
How long is a person's lifespan? Not too long either.
How long does a cat spend waiting for someone? Most of my life.
How much time does a person spend with a cat? One fifth of a lifetime.
How long does it take for a cat to remember a person? Most of my life.
How long does it take for a person to forget a cat? Lifetime.
The short encounter is exchanged for the long companionship after separation and reunion.