I've definitely got this problem as well... I find that at times I feel great and end up talking to a lot of people and going out and doing things with them, but then when I get back to normal or especially if I'm depressed I realize they probably find me annoying or weird or something. I end up isolating myself unless they make every possible effort to talk and do things with me, so more often than not it just gets kind of awkward (probably my own fault for just not talking to them anymore). It's very annoying but I just can't help it... I also know it's not true, I remember when I was in Florida for a while someone in the smoking pit pointing out that I was out there a lot and talked to people a lot sometimes but no one had ever really hung out with me more than a few times. I know I should put myself out there more and every once in a blue moon I find someone that I click with very well that makes a lot of effort to be my friend but it just doesn't happen very often. And as soon as they or I leave (military, people move around a lot) we lose touch because I usually assume the things I have to say over phone or texts or e-mail, etc. aren't interesting or worth talking about. I have found I guess the big thing would be going out to something you like to do, for me for example concerts, and just putting yourself out there. I'm probably not the one to take advice from though.