Retconner, for a Pokemon? That's normal. They don't (usually) wear clothes and go around naked.
I'm feeling for Azzi. He finds out that the two people he had been having sex with are his 'one true love's' children with her human husband and his one true love is dead. That is... it's a crusher, whether you are human or Pokemon.
Unfortunately that is how it goes when a human and a Pokemon fall in love, even if it is just one falling in love with the other.
So, wait a minute... Palkia and Dialga are the Pokemon of Space and Time respectively, supposedly knowing everything going on everywhere and yet THEY DO NOT KNOW WHERE SOME POKEMON COME FROM? I call bullcrap or shenanigans by someone... most likely Arceus.