Nicolas went to the park alone and spots a girl that his sister doesn’t know. Finally! His chance to make a friend that was all his own. It wasn’t that he resented Mallory and her popularity (not all that much). It was just that it was hard to compete with somebody like her.
The girl laughed at all his jokes and even agreed to cloud gaze with him. Nicolas had just made his first friend. Now all he had to do was keep her away from Mallory so she wouldn’t steal her.