Something as simple as going to a movie alone. It can be the best adventure. It's nice to have wiggle room to just... go. You don't have to worry about waiting for someone to tag along. Don't have to worry that you won't get to sit here you want. Don't have to worry about them stealing your popcorn. Don't have to deal with their laughing at scenes that aren't really that funny. And you get the armrest all to yourself.
Yes, it's nice to have that freedom of entertaining yourself. But then sometimes...
After going to see your tenth movie alone. You start to feel like you have too much time just staring at the lighting before the movie starts. You've sat just about everywhere in the theater by then. You wish there was someone there to turn to when something is funny enough to share. And the armrest sits there mockingly, like it's caging in your loneliness. And you realize... you never really do finish all you popcorn.