Don't worry, you don't look like a jerk! Many women are like that (and perhaps I myself come off like that at times).
I just formed my opinions about guys from my experiences in college.
I was in a very competitive program, and let me tell you, the pure arrogance of the male students was ridiculous! There's a difference between knowing that you are intelligent and thinking that you are correct in everything.
When I would go out with them for lunch, they would lecture ME on politics. I was in the same classes and shouting them down during debates, and they would say, "Do you know what a libertarian is? Did you know that people don't speak Arabic in Iran?" I just wanted to say, "No, you moron, I'm getting higher grades than you and I don't know what 'Farsi' is."* The truly intelligent yet humble men were so refreshing to speak to. They spoke about anything and everything, asked for my opinion, listened, and didn't act like a show-off, even if they disagreed with me.
I don't like when men talk down to me. My older husband and I get into little tiffs about that all the time...hah... Listen, we're not perfect either. There are plenty of women who like arrogant, good looking men. I can't explain my gender's ever-changing preferences!
There are women who want good, serious men though, I promise.
*I was being sarcastic. I briefly studied Farsi.
Asteriktos -- I have a problem with that too!! Ha ha.