Percy Jackson used to be your friend.
Used to.
Yes, this might have happened because of you, but you didn't mean to take it that far. But the hate started out small, when you pranked Annabeth by putting fake plastic spiders in her pockets, shoes, bags, bed... Etc.
Well, she was mouthing off about you, saying all sorts of offensive things about your godly parent. And it wasn't even a big deal, you just would scare Annabeth shitless with all the spiders.
To be honest, it was pretty funny.
Then, Percy figured out about this. Now, he was definitely, totally, just absolutely obsessed with Annabeth. Platonic? Nobody knew. But he started off with small things to get back at you. Tripping you, stealing your food, and soaking your bed with water from the lake.
So, you did shit right back. And things quickly escalated. From just flipping each other off, to getting nearly drowned in the lake by Percy, to beating the shit out of him in front of all the campers and calling it "sparring".
Chiron wasn't too fond of that last one.
But one thing was definitely clear. You and Percy hated each other now. It wasn't even about Annabeth's honor, or yours.
So, Chiron came up with an idea that was probably your worst nightmare.
You woke up, laying on a rock by the lake as the sun set.
Wait, you were just napping in your cabin-
You sit up, only to find your left hand not budging as much. To your shock and horror, your left wrist is handcuffed to Percy's right wrist.
There was a note in-between the two of you from Chiron, reading...
The handcuffs don't break, won't come apart, and won't loosen at all until you two become friends again. The Hecate campers made sure of it. -Chiron.