Yea I'm going to go ahead and side with Tidy on this one. She established that she didn't want attachment. You had some fun and then she bailed because she begun to have some. I'm guessing you're annoyed about the lack of continuation but that stuff never lasts.
Also don't take it as a blow to the ego. You just had a few sessions of what I'm supposing was good sex?

oh wait and the only ramification is that she still wants to be your friend? Common dude you've got to use this as a booster for your ego if anything. Please don't try and salvage this sort of thing, if you're trying to salvage friends with benefits you're going to loose a lot of credibility with her... which could pass off to her friends, which she is now a bridge to.