This couplet is very good: I whispered promises to you
some were lies but most were true
you've used that before right? And nothing wrong with re-using it either!
For the first verse what do you think of mixing past and present tenses to make it smoother like: Our eyes meet across the room
Smiles show we're both in tune
Walked across to where you stood
Can't believe you look so good
I know that's not grammatically correct but to me it sounds better.
The main thing I see is that your chorus doesn't seem to be the heart of the song. You've got a sort of dream lover is she / isnt she thing happening, but the chorus is about whispered promises, which doesnt seem to match up.
I don't think this line is working for you either: told you what I want to do
it feels like filler.
But there's enough that's good here to make it worth pursuing.