@Groundass: She doesn't have to be looking at you all the time to like you. Maybe she's too aware of it sometimes and is afraid other people will judge her on it. Or she might get aware of it and thinks she's coming off as easy and backs off a bit.
@Vancegirl: I'd go see a doctor and check if this guy isn't brain dead. I do not agree with all the guys who say that he is an ass, after all, how can I judge him on just this information? I'd rather think of someone as an ass when he's out to insult girls and to hurt them or use them, not when he's incapable of showing emotions or lacks any social skill.
You might want to reconsider hanging out with him, not because he's an asshole or something like that, but because I think it's going to be very difficult to try and change him into a talkative guy, especially if it has anything to do with his military background.
@B-L: Where were you man, how's it going?
@Winned: I'd drop the 'plans for the weekend' one since it's too much of a 'let's see if you have time to hook up with me' question. I'd say you need to learn to have peace with silence and relax. Don't freak out when it happens.
Another thing you could do is flick her on the arm. And if she asks why you did it, say because she's too silent, or if she does it back, tell her not to flick you and do it back to her.
Something fun I like to do is keep up a score thing. Sometime during a conversation I might say she just earned a certain amount of points, then I make up rewards for those points and let her try and earn points. It's very fun, plus you can lower her points when she gets silent so she'll need to talk because she wants those points.
@Cayyb: You're sixteen, how do you expect us to fall for your spamming? And in case you have some kind of robotic hands that allow you to type but prevent you from scratching your nuts, try a less aggressive approach. Simple ask it.
@TheBlackDahliaMurder: I'm guessing it's just nerves. You're making such a big deal out of it and that's exactly what's preventing you from getting any. Also, I highly doubt it's a physical problem, especially at your age.
I suggest that instead of her giving you head first, do some stuff to her first. It should relax you more. And if you're making her orgasm and you still don't have an erection, then it might be time to think of a physical problem :P
@daniel123297: Wow, that's a tough one bro. Was she talking normally before that? Because if she was, maybe this was some absurd test to see how you're dealing with it. In any case, I can't really tell you what to do about it since I would need to have a lot more info, but the most important thing to do now is to keep your cool. Don't start freaking out about it, it's not the end of the world and it won't ever be. Remember this; it's only a big deal if you see it as such. And if you believe that it is, then so will others, and they'll judge you on it, especially this girl. So just relax and keep on living.