I'm pretty sure the last three lines are "You didn't tell, you didn't tell, you didn't tell me!" He could be referring to a number of things. Matt mentions that he's "never heard your lies", maybe this is the point where he relives the realization that she is a liar or that something she said turned out to be false. Or it could possibly be something about her appearance: He appeared to be waiting for something to download on an incredibly slow internet (50 bites per second), which I suspect is a picture. He continues to put off downloading the picture though, putting faith in the idea that she's going to be practically perfect. Whatever it is she didn't tell him, it was enough to throw him into, for lack of a better word, hysteria at the end of the song.
I'm pretty sure the last three lines are "You didn't tell, you didn't tell, you didn't tell me!" He could be referring to a number of things. Matt mentions that he's "never heard your lies", maybe this is the point where he relives the realization that she is a liar or that something she said turned out to be false. Or it could possibly be something about her appearance: He appeared to be waiting for something to download on an incredibly slow internet (50 bites per second), which I suspect is a picture. He continues to put off downloading the picture though, putting faith in the idea that she's going to be practically perfect. Whatever it is she didn't tell him, it was enough to throw him into, for lack of a better word, hysteria at the end of the song.