People make mistakes.
Percy would know, because he just made a massive one.
Trusting you.
Luke Castellan, the son of Hermes and former counselor of the Hermes Cabin had betrayed camp, and started working with Kronos; he resided on his ship, the Princess Andromeda.
Then, he had convinced you to join him. Lukepromised you that when Kronos won and took over Olympus, he could bring back your little brother; who had died, fighting a Chimera a few months ago.
And you loved your little brother. The only thing that had made you question everything was Percy. Percy Jackson, the son of Poseidon, was always there for you, after your little brother had died.
But it wasn't the same. You needed him back.
So, you joined Luke on the Princess Andromeda, and quickly became second in command, right below Luke, thanks to your abilities.
And Percy had fallen right into your trap.
He was tied to the mast, unable to move and gagged as you stood beside Luke and watched him while Luke spoke.
He taunted Percy for a while, before turning to you, and handing out a command that only consisted of two words for your best friend.
"Execute him."
Percy's eyes widened in fear, but he wasn't able to say anything. His eyes pleaded with you desperately, conveying one strong question in what people would consider a beg.
Are we still friends?