Egh, lonliness…
It’s strange. For almost my entire life, I never really felt lonely. I am an only child and I guess I learned at a young age how to amuse and entertain myself. Even the fact that I hadn’t been in a relationship for about 5 years didn’t make me feel lonely. Sure, I felt like something was missing, but I didn’t feel all that lonely.
Then, for the last 6 months, I was in what seemed to be an absolutely wonderful relationship. It seemed to be going quite well and I grew rather used to having someone around. Now, the relationship has ended, and, for the life of me, I can’t remember how to once again be happy alone.
Focus not on what you are missing, but focus on what you have.
You’re not alone. You’re Independent.
[ul][li]Make last-minute plans. Then change them. And make no excuses.[/li][li]Go see that movie that only you want to see. And avoid the dumb one that you would only have seen for someone else’s sake.[/li][li]Fill up your schedule: take a sign language course, work out at the gym, join a pick-up volleyball game, etc. Don’t worry about making time for your “partner”.[/li][li]Listen to the music you like but annoys most everyone else. Loudly. And repeatedly. Put that single song on repeat for an hour and make no excuses.[/li][li]Sing. Whistle. Hum.[/li][li]Spend (or save) your money the way you want to. [/li][li]Slurp your cereal the way it used to annoy your partner.[/li][li]Don’t compromise your principles for the sake of concensus.[/li][*]You get the idea. 
[/ul]Though I admit, loneliness hurts. Know that it won’t last forever. And while you have it - make the best of it. 
I’m a people person, so while I enjoy abouts of alone-ness, if they happen too often, I get sad. I like going to the movies when I’m lonely. It’s something that gets me out of the house, and that I can enjoy on my own. Also (and I know it’s probably not the healthiest solution), multiple glasses of wine and silly TV can help temporarily.
“Walked out this morning
don’t believe what I saw
a hundred billion bottles
washed up on the shore
seems I’m not alone in being alone
a hundred billion castaways
looking for a home”
when no one else is around
and I sing into the waves
I sleep, read, play in the garden, talk to my dogs, call my mom, call my oldest daughter at college, get blown off by the last two, resort to the message boards where I am also ignored but at least feel a part of something, and stare at the computer until I can no longer stay awake.
Sometimes I start cleaning things.
I leave the TV on. Sometimes I pretend that there are lots of people over.
I have no friends, a husband and family who demand my constant attention and I am constanly belittled, critisized and put upon.
I am vaugely envious of, and mystified by those who do have friends.
I fantasize of being alone on a tropical island.
I have gone weeks without talking to a single person outside my family, and I really didn’t mind.
Damn, but I am pathetic. 