So I made a post about winning HB10 earlier...
She logged onto MSN.. and I was like:

Me: ____ How is it going? You're always on the computer right?
HB10: No. Not always, only when I'm home
Me: So you're always home?
HB10: No, I go out early and get home late, but sometimes I'm lazy to go out.
Me: So you're this crazy, adventurous lazy girl?
HB10: Hehe, yeaah...
Me: Well, if you could have a superpower, what would it be? You get points for being creative..
HB10: Well, I can't cry, and I'm happy with it...
Me: Thats not a superpower, I thought you we're creative
HB10: Well, I can't think of any... minus 1 point I guess..
Me: -10 Points! And another minus 10 for being soooo talkative
I was going to adopt you as my new best friend, but I've decided not to. I have to go, we'll talk later! ...
So I logged off... drove home..
And when I got home, I didn't talked to her.. and she talked to me
HB10: Do you like jokes?
Me: Depends, if they make me laugh yes, then no.
......
Me: You got any?
HB10: Yes... well, I do like jokes...
Me: Well, I like to be happy.. tell me one...

She hasn't answered yet...
Am I being too harsh on her?? Or what do you think?

Actually your negs were very subtle and good. She didnt seem to get offended and you held a pretty interesting convo. the fact that she then spoke to you first the next time shows she's interested in speaking with you so keep up the good work.

Actually, she just opened a little bit more.
And she told me she broke up with her 3 year boyfriend just 2 weeks ago ...
She said she needs time to "get over it"
What should I do? I wanna meet her, and maybe go out with her officially... but I don't want her to be all over her ex bf...

Taking her somewhere wouldn't be too serious at all. Take her somewhere fun like go-carting, or even to the mall (tell her you're going to buy a few things and you'd like a female's opinion)