Lyric discussion by gaeastigma 

Cover art for Kryptonite lyrics by 3 Doors Down

i think the song is about someone who was taken for granted, after all his effort of giving the one he loves everything she needs, coming to her side everytime she needs him, doing the dirty works, doing everything she asked for... you know... it's everytime he has helped her, she tells him that "you're my hero" shit... but when she decided to take off, the guy was left and it crushed him... but he still wants her even though he knows she's just using him... but still, he's willing to play the role as long as she stays with him....

well, that's just what i think about the song...