Not only out of fear but also because I have no idea how to conduct myself in settings like that, I have no idea how to flirt and I always just end up acting cold because it's much more safe that way. That way I don't have to say anyhing, so there's no chance of me screwing up.
That sounds like how I used to be in all social situations. If someone I wasn't too personally familiar with talked to me I would usually smile and turn away out of bad nervousness, which would often make my head go blank so I often wouldn't be able to think of how to respond in the first place. That and not doing anything is just killing off any chance of failure.
Lol, the flirting thing brings up memories. I used to be underweight, gaunt faced ('cause of the weight thing), and had a horrible overbite. I was ugly and got made fun for it all the time. Braces and a weight gain (to a twiggy, yet normal state) going into freshman year took care of that. However, I still thought I was ugly and if someone tried to flirt with me my first thought was that they were mocking me. Hmm, my self esteem was at 0 most of my life.

Btw, for those of you who are lonely and want a girlfriend/boyfriend....
Yeah, just saying, you'd probably not be happy in a relationship. Depends on how you are, though. x)
Now in these days I'm 'healthier' compared to most here. Looking back on it, being in a relationship brought out my self-esteem issues and poor self-image and all that crap and made me feel bad about myself more than usual.
Then the trust problems made it stressful and maddening at times. The vigilance of watching for potential threats, trying to figure if they were even something to worry about, second guessing the meaning you were settling on as something new comes up and makes it ambiguous(spelling?) once again. Alllll the time. All over what could always just be nothing. Still the only signs of trust issues I really let show were my inhibitedness with information and emotions, really. lol
It's all exhausting.
How some on this forum have gotten into relationships without too much crazy sinking in is kind of off me.

Yeah, point is..... You're not missing too much, if they'd only make you crazy. Ew, this whole post sounds whiny and self-indulgent. I was just giving experience examples to explain how you guys may not be missing anything. >.<