ARG okay so help me out here.

There's this SONG and I can not figure out what it's called or who did it.
It is sung(spoke?) by two people, a guy and a girl. They are digging at each other throughout the entire song, and seem to hate each other. Except there's a part where the girl confesses her love for the guy in a kind of an aside. I'm not sure if the guy reveals that he feels the same or not. There's a sort of refrain in which they say something about being 'reflections' of each other or something. The girl mentions converse shoes at one point (just a small detail I remember but still won't do me any good in lyric searches) and there's this strange part where she's talking about attending his funeral?

Anyone know what song I'm talking about? I heard it on XM (I think it was Ethel, or whichever channel that is now AltNation), but I don't think it's a well-known song at all.

Also tips on finding the song some other way would be awesome. I don't know any phrases verbatim, just some of the themes discussed in the song. It was MONTHS ago that I heard it, and have been looking for it off and on since.

THANKS