I Don't Have A Name For It -- Steam Powered Giraffe
This is another Wesley band, and I love their stuff. They play as a neo-steampunk band (they're supposedly robots created about a hundred years ago), but their songs are all over the place.
I like how this song describes the two people. I always considered this a "Paula" song as well, and I would never consider dating anyone else if I couldn't feel the same way about her as the singer feels about his love.