I found it difficult to make out the lyrics at first, but I did eventually hear the same thing twice and so assumed that to be the chorus. As far as happy goes? I don't think it's happy enough to be out of whack with the rest of the song. In fact, the line about the darkness falling down around me and you could be interpreted as quick a dark thought, really.
 
But, on to other things...
- It's hard to tell the difference between the verse and the chorus, musically, but for some reason it didn't bother me all that much. And you're in good company, anyway. Harry Nilsson's "Coconut" had only one chord. Perhaps if you did some harmony vox in the chorus that would help differentiate the parts of the song.
- I agree with other comments on here; you have a great voice.
- I also love the lazy drive of this song. It's relentless, but unhurried, like a sunset... You know, the darkness coming down.
- Your guitars sound fantastic.