What the heck is wrong with me? I seem to repel women!

Anonymous
So, I'm 29 now, was intensely shy in high school, but did a tour in the military and some corporate work and now I'm back in a university, wanting to date again. So its my first year at the school, granted.

I find this girl in a class who I like and find attractive, and thought that she likes me too.

But today we go in for a library session for class and I realize I'm back where I started.

Everybody sits next to each other, except when it comes to me, the girl sitting in my row just sits 1 seat away from me. Then I see another girl talking to this guy ahead of me and laughing and joking (and later they walk out together) and I've been in this class with him from the start and he hasn't been doing anything special, he hasn't been flirting or anything. I've been trying to be as outgoing and friendly as possible, and I've made it known to that girl I like that I like her by approaching her one day and talking to her. And I read her body language as she kind of likes me too. But she doesn't sit next to me, no, she goes and sits with her girlfriends in another row.

I'm just frustrated with this all, it feels like I'm doing something terribly wrong in this whole new dating environment. I'm being myself, I'm being funny, and I'm actually talking to people. Should I just up and ask the girl out or should I remain patient and try to get her to talk to me more, get to know more about her.

It's not just with girls, but with all people, no matter how friendly and nice I am to them it never becomes anything more than an acquaintance, never becomes friendship or anything. What should I do? What am I doing wrong? What is wrong with me?
What the heck is wrong with me? I seem to repel women!
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