[He has. It makes him different from most of the other campers and he knows it. As far as he knows, only the Seven have met their parents but even that was incredibly circumstantial.]

...it was complicated. There was a war. That's the only reason he noticed me. [Maybe that's not entirely fair to Hades, but it's not like they'd started out strong.]

After the war, things got better. It's...still strange with him though.