I'm in about the same boat as you....actually been there twice, once when I divorced 5 years ago, and now again since I broke off with my ABF. The lonely SUCKS for sure!!
The others gave you great advise, but in addition, have you thought about posting a profile on an internet dating site? It may be too early for you to get into a relationship, but just put in there that you are looking for a friend/email buddy at first. I'm saying this because when I went through my divorce, I did that just to pass time as the loneliness was awful...but I ended up meeting 2 really nice guys in my town through the internet. I was honest, that I was just looking for a friend, and the emails slowly turned into phone calls, then going out as friends/casual dates. Of course, be careful....most people on dating sites are okay, but use caution (as with any form of meeting strangers).
Hope you feel better soon!!