I remember when I wouldn't be caught anywhere by myself, I thought that was the most lame thing going somewhere alone. Now I have no problem, certain places you would rather have company but I can say I enjoy going out to eat alone. Hanging out alone builds confidence, helps you make more rational decisions when spending money and it also makes you more approachable. You can network better when alone, some people get intimidated when having to approach a group of people and we have a tendency to be a little more friendlier when we are by ourselves.
So take some time out at least once a month to get to know YOU a little better....you will be surprised what you find out!