Are you restless like me?

Okay, so I have this song stuck in my head. I can't remember what song it is or who it's by, or even more than a couple broken lines of it. And I cannot figure out what song it is. It's starting to bother me.
I think it's a girl singing, maybe a girl and a guy, but then again it could just be a high-pitched guy. It's a really mellow song, slow, but not depressingly so. I can remember the lyrics;
"...all our actions were intangible and sweet..."
"...stick with simple math and shy/sly(?) discoveries..."
And there seems to be something about impending defeat and possibly the phrase "tangled up again."
My ideas of who it was by were all wrong. I thought Bright Eyes, Death Cab for Cutie, or the Postal Service. So I went through and listened to the possible songs and none of them were it.
I ask of you to think about any possibilities and comment if you find anything. I tried Googling it and didn't get anything, so I'm stuck. And it won't get out of my head. I like the song and want to listen to it in it's entirety.

Well, I'm going to check my Dashboard Confessional stash, only one cd I swear, and have another look through iTunes.
Thank you for your time.

UPDATE:
That didn't take very long. I figured out what song it was. I can't believe I hadn't thought of The Weakerthans. But then again, the part that was stuck in my head was the last 30 seconds of "Benediction," not one of my most played songs. I was pretty close with those lyrics, though, here are the real ones;

But our intentions were intangible and sweet,
Sick with simple math and shy discoveries,
Piled up against our impending defeat.

See? Close.