The Strokes - Reptilia Lyrics Meaning

I'm trying to look at both perspectives "he seemed impressed by the way you came in" as if it were the girls friend who told her that , and they go ahead and ask him "tell us a story I know you're not boring " and he though that girl of his dreams wouldn't even dare to ask him . And after him talking for a while they figure he's way to boring and just sounds like he's sleepy , and he's trying to get at the chick he was impressed with way to fast , he(Julian) gets rejected... he feels bad and pathetic that's when he looks himself in the mirror and tells himself "I told you this world is not for you" he can't talk to a girl and that the whole point of life . Then he goes on to start stalking the girl while she's fixing her hair , she's sees him stalking him and she gets angry and annoyed , but he did have a lot of feelings for this girl but he struggles for her to get to know him and he wants her to get to know him so badly . maybe the part were he says this "I thought I told you this world is not for you" is where he got the title of a repitilian humanoid. But yeah this lyrics is very complex and that's just a perspective that can be right or wrong only Julian knows what the lyrics means even if the song had a logical meaning it probably has much more complexity to it then what it just says ... I don't always see the song as what a wrote on this post but on the mood I feel I interpret it . It's hard to know who's the persons perspective in the song if whether the whole song is from a girls perspective or a mans or even a combination of 2 or more . So yeah the logical meaning is kinda there but maybe not the real meaning to the song.