I think it's about a girl who he has a thing for, and they may be sleeping together, but she's very damaged and a drug user. He thinks she's perfect, but then she takes him to parties where things are darker/more dangerous than he'd like, and he sees that she fits in. Even though she brings him places and needs him, she abandons him, so he ends up getting into the party, sleeping with someone else, but he's still thinking about her. Just when he's thinking maybe he could get into this kind of life, he realizes that even the next day she's using drugs, it's not just something that she does for fun. He can't save her, because she's pushing him away and doesn't want to save herself.
I think it's about a girl who he has a thing for, and they may be sleeping together, but she's very damaged and a drug user. He thinks she's perfect, but then she takes him to parties where things are darker/more dangerous than he'd like, and he sees that she fits in. Even though she brings him places and needs him, she abandons him, so he ends up getting into the party, sleeping with someone else, but he's still thinking about her. Just when he's thinking maybe he could get into this kind of life, he realizes that even the next day she's using drugs, it's not just something that she does for fun. He can't save her, because she's pushing him away and doesn't want to save herself.