What's the name of this song?

i only remember small parts, but it's sung by a male, and it goes "i think about you all the time _ _ _ _ _ _" I dont know the words after that, but those are where there are like other syllables, and i dont know the real notes to it, but it kinda goes lik A B A B A B C A, A C C C D C. then theres this guitar part that goes A B C C C C C A B A, A B C C C C C A B A. the genre is alt. rock, and the tempo is pretty slow. haha sorry i know this is confusing....