Characters
I burn, I pine, I perish.
— Cameron ‧ 10 Things I Hate About You

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker dramatically lists three stages of suffering, burning, pining and perishing, as though longing were consuming them entirely. The escalating triple sounds like lovesick exaggeration, expressing a yearning so intense it feels fatal to the one who feels it.
Context reviewed