Daily conversations - forgetting

"I think the weirdest thing is having left-over information about someone. Like i still know someone's favorite baby's name, or their favorite season, or their address. I remember someone's favorite chocolate, their favorite childhood book, and the mental disorder their uncle has. I remember the names, ages and birthdays of their siblings. I remember their favorite songs, and how they love their coffee and whats their favorite food. I know when they wake up and what's their favorite sport. I remember their short size and their favorite color. Where do i put this down? Abd where do i learn to forget it ?? " " until the part of me that you first touched, forgets"