I am clearly in the minority - and on re-reviewing the lyrics, yes I am mistaken.
What convinced me I was wrong is that the opening of the song, up to and including the first instance of the refrain, is nothing but positive commentary on the singee. This sets up any negativity later as merely reflecting on the less that perfect relationship she is leaving.
I argue, though, the song is more interesting the way I originally thought - i.e. she is rekindling a sub-par relationship against her better judgement.
If you accept this premise, the beginning of the song is ironic and the refrain is a delightful conflict between “you’ve got the lovin’ that I like, sure - but I still really shouldn’t have got on this flight…”
There’s a thematic tie to “Case of You” later on the album (stretch with me here):
Clearly in “Case of You” she’s not buying this star metaphor nonsense. Maybe the star he gave her between the trailers was also lame.
She’s landing and her thoughts turn to things that are relevant to the visit. If he’s supposed to pick her up then later get snuggly - functioning heat and automobiles are important. Throw onto that the “I hope it’s better” i.e. “Last time sucked. Why am I here? I shouldn’t have got on this flight.”
Whichever direction the plane is flying, the relationship has problems “you’ve got that look so cynical”, "sometimes I think love is just mythical.
But if she’s landing to meet him, that makes the “blackness, blackness dragging me down / come on light a candle in this poor heart of mine” reinforce the “this is a mistake, but hope springs eternal - please let it be okay this time”
Is this song a Necker cube - you can view it either way and switch back and forth at will?
Or (more likely) am I trying too hard?