Howling:Only a fairytale?

Ok.. So i have had my theories about the next 2 episode but there's one thing that i wanted to point out.

In TEH when the Doctor meets Amelia, he asks her name and she says 'Amelia Pond' then he replies "Amelia Pond! Like a name out of a fairytale" but also in FaS The Doctor and River are having a conversation and River says "when the Pandorica opens". The Doctors reply was "The Pandorica. Ha! That's just a fairytale".. So maybe this whole thing is a fairytale or maybe a fairytale consuming Amy?