Good grief, I can't believe it. You sound exactly like me. I post messages and then check like a fiend to see if someone has answered...and if they don't, sometimes I get all upset.
Oddly enough, lots of times people don't answer...or when they do,its short and almost curt. My little social problem follows me everywhere I go...like a cloud that has my name on it.
I thought I was the only one in the world who could be that hard up for sometone to talk too...and yet at the same time, relish being alone and have a hard time dealing with people on the rare occassion I get a chance to.