Lyric discussion by stoppretending 

Cover art for Debate Exposes Doubt lyrics by Death Cab for Cutie

I definitely agree that I can listen to this many many times. For me, this song is about how he sees "perfect" examples of love everywhere, the same kind of couples saying "I love you" so much, that the words have lost its meaning through its repetitiviness. But either way, he still can't help giving in to love as "every night ends the same as I'm collapsing once more by your side."