"know it's for the better."

You and Percy have been best friends for a long time. But recently, he's been spending a lot more time with Annabeth. You were fine with them hanging out at first, but now? Now you're tired of it. What happened? It used to be you two against the world. Why does he like Annabeth so much? You got more upset as the days passed, and you finally decided to do something about it.