<human>: I am a 21yo female and I've never had a boyfriend. I used to be in love with the guy for over 4 years but he just used me as emotional support and lead me on. I've dated (if you could consider it that- we were more friends than anything) about 3 or 4 guys in my lifetime. This included just hanging out and not for very long, 3 "dates" tops. I'm not ugly or anything. People tell me that I'm pretty all the time and I dress moderately well. 

The guy that I was in love with told me I was intimidating several times because of my intelligence. I really care about school, education and my favorite topics are philosophy, physics, and art history. 

I'm also an introvert. I'm not the most outgoing person on the planet. I like going to museums, the opera, and cafes way more than clubs. And it takes me a while to open up to people if I don't know them although I never try to be rude. 

Well, I never had a boyfriend and it sometimes freaks me out because I'm kind of "late" in this department. I've also never been kissed. 

Well... I really like this guy in my class. We've ended up sitting together a few times and we've ended up talking. It seems like we have several things in common. I think he's really nice, intelligent, interesting, and he's very attractive. 

I just don't know what to do. I do like him. And I haven't liked anyone really for over two years after the whole debacle with the guy who lead me on. I'm also really shy about these things. I don't feel like I have the confidence that most people would have because I don't even know what I'm doing and I second guess myself all the time. 

Please, any advice would be great.

Can you give me the gist of the text in a nutshell?
<bot>: I'm a somewhat shy nerdy intellectual who's never had a bf but currently has developed a crush and I don't know what to do.