i really doubt this song is literally about nicotine, i interpret it as being addicted to something or someone that is bad for you, generally nicotine is categorized as being extremely addictive, i think its a metaphor for
maybe even a relationship that is completely one sided, hence this verse
"the feelings that i've felt when i said i needed you,
but i don't recall that you would ever say it back"
i really doubt this song is literally about nicotine, i interpret it as being addicted to something or someone that is bad for you, generally nicotine is categorized as being extremely addictive, i think its a metaphor for maybe even a relationship that is completely one sided, hence this verse
"the feelings that i've felt when i said i needed you, but i don't recall that you would ever say it back"
i could be wrong, but thats how i perceive it.