Nope, you need to keep the game's context in mind. The task is to get the pizza from point A to point B as fast as possible. Thus Gemma isn't simply fleeing, she's ignoring the bullies and focusing on doing what she wants to do. Depression comes from letting the bullies control her and happiness comes from refusing to do so. This very concept is in fact expressly embodied in the game with a little sequence where letting them get to her makes her fall to the ground, and she has to force herself to get back up and keep going.