"I'll be your Percy Jackson if you'll be my Annabeth Chase." (Seriously, if a guy'll say this to me, I would blush like crazy and say 'yes'. Especially if the guy's my crush ^^ Of course, I'll have to meet and greet him first :3)
"I Argo II us."
"I'd rather fall into Tartarus than be without you."
"I love you doesn't really suit us. Cause my feelings for you are way beyond those set of words."
"You are not my friend. You are not my best friend. You are not my close friend and you are certainly not my girlfriend. Cause all of those words have "end". I don't want US to end so I always say "We're together." and "You're mine."
Some of the quotes, I only interpreted it cause I forgot how exactly it goes ^^