19. Hate (I Really Don't Like You) - Plain White T's
The History: This song was a single of their fourth album Every Second Counts, but it was overshadowed by the band's biggest hit Hey There Delilah.
Why It's Great: This song talks about how the girl of your dreams really isn't and breaks your heart, which isn't unheard of. However, it takes that situation and focuses on the emotions. It plays with the idea of dislike vs. hate in a creative way that really taps into a break up.
Sometimes you don't hate your ex, but you don't like them, and that's okay. This breaches the middle ground of 'It's okay, we're friends now! and I hate you, I wish I could punch you in the face!' of break up songs.