i agree that it seems to be about either an addict or someone with some kind of mental condition that this person has been trying to help them with but the person doesn't want help or can't be helped. "paper model plane glued to your spine severing off your feelings" has a strong connotation of this, and also the part "you started screaming blue murder true, that's so you, you're soaked through" reminds me of someone waking up in a bad dream soaked in sweat or having a bad reaction to a medication or going through withdrawl.
i agree that it seems to be about either an addict or someone with some kind of mental condition that this person has been trying to help them with but the person doesn't want help or can't be helped. "paper model plane glued to your spine severing off your feelings" has a strong connotation of this, and also the part "you started screaming blue murder true, that's so you, you're soaked through" reminds me of someone waking up in a bad dream soaked in sweat or having a bad reaction to a medication or going through withdrawl.