The older you get, the clearer you see the end of the tunnel. You've heard the quip 'Life is too short'. Well, the work of making friends , of defining how much committment there is to a relationship, etc...is not worth it. Happiness is something only you can allow yourself to have. And once you realize this, who needs the risk of having an emotional downside through a new relationship when you might not have enough time to right yourself??