modest mouse for a few years, tho i like them now.

also a hole bunch of portishead.

none, though I'm pretty sure i have this affect on my ex's

music exes probably don't listen to anymore seems valid even if it's just an excuse to list the progmetal the exes don't listen to any more.

here's my list:
ALL PROGMETAL.

Stufjan Stevens, Coheed and Cambria, Hello Goodbye

i think you lucked out there by not being able to listen to coheed anymore

truth.

although Welcome Home is pretty epic.

Sloan

oh man, I think about this one a lot. there are songs, but not entire albums or artists. and I"ll still listen, but it's torture

quite a bit of Sebadoh

I could say the pixies, but no amt of sadness can keep me from their eternal light

Goldfinger
Sublime
MxPx

Not missing much.

oh yea
Concrete Blonde

(ha. GOOD)

There is only one reason I would not listen to a band. That reason is, because I don't like that band.

Although, there were a song or two that I had a hard time listening to for a while after a significant other passed away, but that is different from a bad break up.

Placebo.