User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-122.171.17.150-20130605092148/@comment-3146930-20130605104630

You also have to consider that Percy and Annabeth have known each other for about 5 years. You try not mentioning someone you've known that in your conversations. Piper and Jason on the other hand only knew each other for a few days in The Lost Hero and she talks about him even more in The Mark of Athena, six months later.