User blog comment:SayuriDarling/The House of Hades Official Discussion/@comment-24308873-20131014175259/@comment-1515612-20131014183838

I think the main reason he did it is to show that it's okay to be homosexual and continue to be bad ass character that the fandom adores. I mean, Percy was an outcast because he was a trouble maker. Nico out casted himself because he was gay and was afraid if others knew. Makes sense.