Hey guys, so here's my story. Would like some advice on how to proceed.

I was out with a couple friends and met this girl. Made some connection and we made out. Got her # and texted her for awhile. She'd made plans to go to another city, but got her to change her mind and we went out again and made out again. During that night I befriended her friend. We were actually talking about some deep shit. (Appearantly she got a big secret she couldnt tell her friend and for some reason confinded in me and then we talked about what I thought of the first girl.)

Now here's the wierd part. She started texting me the day after, about what I told her friend. As I promised the friend, I didnt tell her the secret, but after awhile I gave in and told her that I liked her. She "acted" happy (as happy as u can act on a freaking text atleast) and said she liked me to. And so she went on this trip she didnt go to on the weekend. The next day I get a new text.
Roughly like this:
"I've thought about us alot the last 24 hours. I cant deny I like you, but a relationship wouldnt be possible.We're having fun together and I like to be with you. But it would be best to stay stay friends. Sorry I got your hopes up, I'm really sorry."
My reply was something roughly like:
"Alright, the first part was kinda cool. But who said anything about a relationship? No need to be sorry, we're both having fun right?"

Then she asked me if I saw her as only a friend, felt like I didnt wanna put myself in there as a friend so shrugged it off without saying "yes" or "friend".

so then she says blabla, wanna meet you again, blabla.. btw I have a boyfriend and I went here to see him.

Actually the conversation was slightly longer but well, I do however feel like I told her I liked her too many times.

Anyways here's the [b]real question[/b]
Since I befriended her friend, and we've been chatting and stuff, fyi no she's not availbe (nor would I want her to be), we decided to go party this weekend. And this friend said that there's a high possibility that the first girl will come too.

So how do I do from here if I want to hook up with her again?

this is like... kinda odd. Just act like she doesn't have a boyfriend.