When it comes to loneliness this principal is incredibly powerful for curing your own loneliness: It is better to give than to receive. This is because by giving of yourself to someone, you automatically receive! Your loneliness is instantly cured!
When so many are lonely as seem to be lonely, it would be inexcusably selfish to be lonely alone.
-Tennessee Williams (1914 ~ 1983),
To overcome loneliness see: Feeling Lonely