Ok so you can do sanders sides with this but ya don't have to

A) oerson a

B⁰ person b

C) person c

SC) side characters

So a and b are dating but c eventually convinces b to break up with a while convincing them that they lost feeling with a
The song is from b's perspective most of the time bit at say you hate me? What the hell did i do!?" Is from a's then "i love you!" Is from a and c then "don't care if i have to say it over and over again" is from c. The rest is b being overwhelmed and confused and scared

Again it's up to you if it's sanders sides gender etc.