I've been single for 6 years now.  At first I was sad all the time and lonely and pathetic, but now I'm glad I don't have to deal with all the "side-effects" that come with romantic relationships. 

Personally, I think being single is a blessing.  It's like one of those things where at first it stings and you can't handle the pain, but after a while it no longer hurts and becomes second nature.  Emotions are purified into perceptions and you'll laugh maniacally watching as each one of your friends fall for the Grand Trick.