Feeling a little blue today.
Did a little surfing - came across this site talking about unrequited love. It's supposed to be funny; I suppose it is in a way. It's certainly very complete. Perhaps later when I look back on it I'll laugh a little more.
http://www.physics.ohio-state.edu/~sstoneb/agony/
http://www.physics.ohio-state.edu/~sstoneb/agony/