Nocturne Summit shallow

She raced past him seconds later, and he gently pushed harder to make it a game. He slowed once she nearly collided with the danger bush and he was quick to ask: "Are you ok?"
Why is it whenever they raced, she nearly gets hurt?

She gave him an incredulous look and he knew she'd realized he wasn't happy. 
He flashed her a grin, trying to chase away the sad anger in him.
He had to be better than this but all he could feel was a heavyweight pressing on his shoulders and dragging on his hips.

He nodded in agreement, watching Moonshadow quickly chase after them with her worried looks. He felt bad for her.