I also think this song is about a guy who's want to be with this girl but is afraid to commit. "And I let you down and I said I'm sorry/But the light, it falls on my castle walls" He's built a wall around himself and feels threatened or scared that this girl has this effect on him. I think they have had a relationship in the past and when they'd sleep together he refused to spend the night "No you never say goodnight," and he's having trouble making up his mind to commit fully to this girl or continue to cop out. He's secure in saying maybe forever, never having to actually decide: "an ode to maybe"
I also think this song is about a guy who's want to be with this girl but is afraid to commit. "And I let you down and I said I'm sorry/But the light, it falls on my castle walls" He's built a wall around himself and feels threatened or scared that this girl has this effect on him. I think they have had a relationship in the past and when they'd sleep together he refused to spend the night "No you never say goodnight," and he's having trouble making up his mind to commit fully to this girl or continue to cop out. He's secure in saying maybe forever, never having to actually decide: "an ode to maybe"