A Good Idea Lyrics

Lyric discussion by elwyn5150 

Cover art for A Good Idea lyrics by Sugar

This is one of my favourite songs from Sugar's first album.

However, I still find elements of it confusing or unclear.

It's clear that she wanted to die (see lyrics famous mortimer cited). Yet, she screamed. Why? Was she expecting to die? Scream of joy? I get the impression that maybe he wanted to murder her and she wanted him to do it.

It's also clear that there are three people here: the girl, the guy that kills her and the persona. So what's the involvement of the persona besides watching? Or is that part of the whole creepy Black Francis aspect of things?