Painkiller is a Dark Reprise of "I Hate Everything About You"
"I Hate Everything About You" uses a both-ways metaphor equating drug addiction with The Masochism Tango- the singer hates the drugs/the other person, and yet can't bring themselves to end the relationship because they somehow still love them. Fast forward a few albums to Painkiller, and now we once again have drug references. But a closer examination of the lyrics reveals that they could also be sung from the perspective of an abuser- You know you need to find a way/to get you through another day... ...I can be your pain killer, killer/you'll love me til it's all over... ...forever you're coming back to me
Now, instead of "I don't like you, but I stay with you anyway", which sounds unhealthy but not nessessarily permanently damaging, we have "you won't be able to function without me, I'm the only one who can help", which reflects both a deeper level of addiction and a more serious relationship problem. But both songs use the same dual imagery and actually sound fairly similar if you play them one after the other.
