I Have a Confession to Make...

I'm lonely.
This feeling has been building up for the last two years, my time at university. And only recently have I pinpointed it and seen it for what it is.
It's a festering stew of my dwindling self confidence, unwillingness to plan social events and a general inability to have interesting things to say and contribute to social groups.
Don't get me wrong, I do have friends at uni. It's just they all seem to have other friends who they know better and see more of. It means when I'm stuck for something to do, or was thinking of going somewhere, I feel like I have nobody to ask. I tell myself they'll be busy doing something else with someone else or I just expect they aren't fussed about going out with me seeing as I'm only asked to bigger, group events. And by that I mean I'm invited to nights on the town but not nights on the sofa watching films and eating junk food.
I know it's my own fault. And if there was something that made me think the answer would be yes, I'd ask my friends to come and do stuff with me. Days in London, nights in the pub, meals out, shopping trips. Anything to stop me staring at the same 4 walls and pestering Joe to come and do things he isn't that bothered about.
All of this is fair enough really. I let myself be reclusive and I haven't told anyone how things feel. As far as my friends know, I'm always out with MY other friends who I'm closer to.
I guess I'm just hoping some of my friends see this and try and help. Not by bringing it up and encouraging me to talk about it. I'm sorry but that's the sort of intense conversation I don't like the sound of. And I'm guessing they'd dread initiating it anyway. But maybe by giving me a thought when planning things to do and just knowing how much I just want to get out of the house and have a life!
Somebody coax me out of this bloody shell.