You mean he gets a little too teenage angst, 'me,me,me' selfishness like Harry Potter did when he turned older, more clingy and lovey-dovey? Yeah, maybe a tad. I would've thought Rick Riordan to be above all that teenage angst, but hey it took at least 8 books to get there...unlike HP. LOL! And what are teenagers without teenage angst and drama. I thought it was irritating BUT still tolerable.
I am still a big fan of the Percy Jackson series and I can't wait for the next installment.