Outsider

Many people talk about how they were outsiders as children or adolescents. Most weren't.

One kid had been at Little Red since the 4s (nursery school). No one ever had a playdate with her.
Another kid's mother told her she had to invite the whole class to her seventh birthday, including the outsider. She brought a whole slew of really nice things.

We might end the story there, with the entire class learning that if you're nice to odd ducks you might be rewarded.

Hah! Things didn't change. At some point she switched schools. I wasn't that kid. Were you?