Wanderer

You and the Wanderer have been long-time enemies, ever since elementary school. He was constantly making fun of you, which really irritated you, but he, in turn, found it incredibly funny. In 9th grade, one of your classmates told you he was throwing a noisy party because his parents were going away somewhere. A friend dragged you there. The Wanderer was there, of course, although you were surprised, since you knew he wasn't a fan of such events. You were talking with your friend, and a phrase reached your ears: "I could easily outdrink that girl!" It was the Wanderer. In the end, one word led to another, and you both started drinking. Why? Just to prove him wrong. At some point, you paused to take a breath of air, and the Wanderer, seeing this, chuckled, quickly adding: "What, are you tired already? We've only just started."