Damn good question and one that I ask myself quite regularly...
The song is of course The Smiths' most excellent "Heaven Knows I'm Miserable Now"
"Why do I give valuable time to people who don't care if I live or die?"
The Smiths' almost as excellent "This Charming Man"
And finally some birthday advice to for the Pope of Mope from the Mael Brothers (Sparks)- "Lighten Up Morrissey"