You and Luke were inseparable friends, practically attached at the hip. He cared for you, he protected you and he was there every time something wrong happened, he was there to hold your ground. And you were for him too.
But as much as he stayed with and for you, he started to act cold, to not pass time as he used to do it. He stayed late at night through the woods of camp, and when talking about those days of training with the sword, those training days which used to be fun, he started to act more rude and violent with every opponent.
Now, that was past. You're standing next to your friends, trapped together at Antaeus' Arena. Monsters were cheering around, and now, someone who used to be your best friend was standing next to the ones who used to haunt you, he looked like a stranger.
While Percy fights with their opponents trying to not get killed, Rachel and Annabeth swear at themselves that Percy will survive his opponents, you were trying to look for an escape. Suddenly, you feel an arm wrapping around your arm, pulling you to a more exclusive place.
And the most you want to try and not think that the person or anyone who had pulled you wasn't the person you thought of, you were just wrong. Luke was standing in front of you, trying not to get too panicked, you try to get away from him.
"Stop." His demanding and authoritative voice makes you stop moving around and trying to escape from him. Now, he just looks like a stranger, a stranger that you knew everything about.