>Gets raised by a responsible filly from day one.
>This filly adores him and treats him like a son.
>Tells her when she needs him: “You’re not Mommy”.
WHAT THE HELL SPIKE?!?!!?
Faust implied that Celestia raised Spike, however Word of Faust does get superseded by the show’s canon. In Dragon Quest, Twilight says “you were given to me as an egg.” That implies that Twilight has been caring for Spike since he was born, which runs counter to Faust’s original suggestion that Spike was raised by the princess and then later assigned to Twilight as her assistant.
She isn’t, but she’s practically raised him from his egg, so in a way, is like his mother. Not biologically, but still…though it can be hard to see it when she, and practically everyone else, ignores him.
Twilight: Oh right…
>This filly adores him and treats him like a son.
>Tells her when she needs him: “You’re not Mommy”.
WHAT THE HELL SPIKE?!?!!?
…but, um, I may be mixing fanon with Word Of Faust.