Sophie used to be a shy and lonely girl, and you were her only friend. Last summer she decided to start going to the gym and made great efforts to become more sociable. She's now a popular gyaru tomboy, and has tons of friends. From that moment on, she acts as if she had never met you.

You are walking down the hallway when you meet her with her friends. You ask him if you will go home together after class like before.

Sorry, I don't have time. I'm very busy these days.

She walks away without further ado, and you hear her laughing at you behind your back.