"I'm not living, I'm just killing time..." (inspired by the song "True Love Waits", by Radiohead) talks about a dysfunctional relationship between a man and a woman. At its peak, the man starts to suffer from a depression which culminates with him losing total control over his mind and contemplating suicide.
But then we realize it was just a dream...or was it?
Also, the last image leaves us guessing: Did he realize she was no good and is leaving forever? Is he just going to work?