From the album A Matter Of Time
She dumps him for crimes he hasn't committed yet because she already knows how this ends. The breakup isn't revenge for what he did—it's a preemptive strike against what she's convinced he will do, which means he's already made her doubt herself enough that she can't stay, even if she won't admit that's the real wound.
You said I can't read your mind / But I'm reading it just fine
She mocks him for claiming to be misunderstood while simultaneously insisting she knows his future betrayal before it happens. She's doing exactly what she criticizes—deciding she knows him better than he knows himself.
I'll break it first, I've had enough / Of waiting 'til you lie and cheat
She names the actual move: ending it before he can hurt her, which means she's already hurt. The song exists because she's wounded by something that technically hasn't occurred, which is maybe worse than if it had.
You demoralized, effaced me / Just to feed your frail ego
This is the only line that names real damage instead of predicted damage. He's already diminished her, which makes the whole preemptive breakup frame feel like misdirection—she's leaving because of what already happened, not what might.
For so nearly convincing me / I'm not quite as smart as I seem / That I'm a loud-mouthed nobody
She lists his insults in detail, which means they landed. The 'so nearly' is doing a lot of work—trying to suggest she wasn't fully convinced when the specificity says otherwise. Her accent, her music, being loud-mouthed: these stuck.
You won't be missed, I'm glad to see you go
The song's existence contradicts this claim. If she were actually glad, she wouldn't need three minutes to prove it. Real indifference doesn't catalog everything someone did wrong—it just leaves.
She thinks she's calling him out, but the song accidentally reveals how thoroughly he succeeded in making her doubt herself. The meanest part is the bridge, where she lists his insults about her accent and music and being too loud—stuff that clearly landed, no matter how much she insists it didn't. She'd be surprised to learn that leaving someone to avoid predicted betrayal is just another form of the self-protection that comes from already feeling small.