Some might argue that is the magic of it. It is much easier to be happy when you miss some things, and look forwars to others. Some listen to radio, or use streaming services in a radio like way (no skipping, no targeted searches) for the same reason, sure they could keep looping their favourite song on whatever platform, but its waaay more exciting when it comes on unexpectabtly.

Our interactions having a fleeting nature makes them more special and forces us to be more emotionally involved.

Just an alternative take, no a statment of my personal opinion.