Which one will I crash? OC or Laguna Beach

Tomorrow I leave for the OC. I don't know whether to be all that excited or what. I will be glad to go see my friend Sara out there but I hope there isn't a lot of drama. Here's the story.

A couple months ago, Sara was out here visiting. At this point, she and her boyfriend had just finished a very turbulent relationship ended with an even worse breakup. Some of the stories that surfaced about what Sara did sort of scared me a bit, like Fatal Attraction sort of scary. She would go in their old apt and write shit on the walls and break stuff. When I told her, "well it sounds like you did everything but poke holes in his condems", her reply was "hmmm, not a bad idea". And that's when I knew that those girls really are out there. Now Sara has always been a seemingly normal and very chill chick but this was a whole new side that I wasn't prepared for.

But with that aside, she was obviously very upset and hurt about her breakup so I told her when we were out to dinner on her last visit that I would fly out for her best friend's wedding to be her date. I'm glad I chose to do it b/c I've never been to Cali before. And I've heard nothing but good things about Orange County so it should be a great experience. However, about a month ago, our friend Kelly who I work with, goes out to visit her. She comes back and tells me all her stories. Now everything sounded all good, except at the end, she threw this out to me, "you and Sara are totally going to hook up when you're out there". Now, why the hell would Kelly say that? I'm not going out there to hook up with Sara by any means, nor do I want to. Not that she isn't attractive but it would just make things very weird. And I need more weirdness in my life like I need a bag on my hip. I'm just hoping that I'm not sending the wrong message by doing this. I'm my little head, I had visions of me hooking up with at least 2 of her friends and lets just go ahead and toss in a bridesmaid for good measure. The last thing I want is for Sara to be jealous or acting weird if I'm talking to other women. You know, and I wouldn't hook up with anyone if it didn't come to me and with little effort at that for this trip b/c I have to keep in mind that this isn't a weekend out with the boys, this trip is about visiting Sara.

It's just that last time I did a trip like this to Louisville to meet one of my college friends, she basically introduced us as boyfriend/girlfriend. And everything I am fearing for this upcoming trip is exactly what happened a couple years ago in Louisville. And that happened again about a year ago with a different girl. So maybe I'm making a big deal out of this but I am feeling a little Pavlov's Dog thing going here with the conditioned response.

At first, I didn't think anything of it b/c I thought Sara was completely grounded. But after hearing these break up stories from her, I'm not sure if she'll do something that would make things too comfortable. I'm almost sure that I'm making a bigger deal out of this than I have to but I keep getting a more uneasy as this trip gets closer. We'll see.

If there is any feedback, I'm open to any advice.
1. Do you think I'm making a bigger deal out of this than I have to?
2. What should I do if things get awkward? (i.e. she gets bitchy if I don't pay enough attention to her)

Normally, if this was just some girl I would know how to handle this but this is a very good friend and I'm not sure how to react if things were to take a turn into the bizarro world. How I reacted in Louisville a couple years ago probably wasn't the way to handle the situation. That is, grit my teeth, take her shit for the rest of the weekend, just get to the airport unharmed and never talk to her again. So I'm looking for alternatives. Thanks!