In the background, Minako's expression since Shinjiro knelt by the girl has gone from this to this to just plain shock as she processes the scene in front of her.

This girl knows Shinjiro well enough to break down on seeing him again.
Shinjiro didn't recognize the girl.
The girl and Shinjiro grew up together.
Now Shinjiro does recognize her, and is hugging her like he'd just seen a ghost.

A... ghost... White hair... 'My name's Mi-'

Slowly, still clutching the filled bag of apples, she rises to her feet. This isn't a scene she should be intruding on any longer.