Diego

“She tied her blond hair back with a strip of denim torn from her pants leg, and in the fiery light of the river, her grey eyes flickered. Despite being beat-up, sooty, and dressed like a homeless person, she looked great to Percy.
So what if they were in Tartarus? So what if they stood a slim chance of surviving? He was so glad that they were together, he had the ridiculous urge to smile.”
― Rick Riordan, The House of Hades

“You promised, Seaweed Brain. We would not get separated! Ever again!”

“You’re impossible!”

“Love you too!”
― Rick Riordan The House of Hades

“Percy: We're staying together. You're not getting away from me. Never again.
Annabeth: As long as we're together.”
― Rick Riordan

“Annabeth's voice caught on the word friend. Percy was a lot more than that. Even boyfriend really didn't cover it. They'd been through so much together, at this point Percy was part of her--a sometimes annoying part, sure, but definitely a part she could not live without.”
― Rick Riordan, The House of Hades