This is what it sounds like when someone mistakes a drug-fueled fantasy for love at first sight. Lacy spends the whole song swearing he doesn't care while building a shrine to a single kiss that might not have even landed the way he remembers. The joke is that he sees it coming , he knows he's being ridiculous, calls himself dramatic, admits he was too high to stand , and falls anyway.
You put me under your spell tonight / With your fairy dust, ass, and black magic
Lacy names three separate forms of enchantment in one breath, and none of them are metaphors he actually believes. He's workshopping explanations for why he feels this way, testing which story makes him sound less pathetic.
What made you think I ever cared at all? / I'm hexed, goddamn it
The protest collapses in real time. He asks a rhetorical question meant to sound cold, then immediately contradicts himself by admitting he's hexed. The song is the evidence against his own defense.
One kiss and I could lose myself for real / You scare me, baby, in an awesome way
He pivots from 'could lose myself' to 'you scare me' without explaining what actually happened between them. The intensity has no event to justify it, which means the feeling is doing all the work , he's attracted to the idea of losing control, not necessarily to this person.
I was so high off my edible / That's why my friends had to carry me in / Do you got your vows, bitch? 'Cause I do
He admits he was too intoxicated to walk, then immediately proposes marriage in the same thought. The whiplash from self-aware mess to delusional certainty is the whole song in two lines. He knows this is ridiculous and wants it anyway.
The whole song is Lacy watching himself spiral and doing nothing to stop it. He narrates his own ridiculousness in real time, admits he was too high to be trusted, and still ends up asking about wedding vows. The self-awareness doesn't save him. It just makes the fall funnier.