If you took her to a party where she didn't know anyone, it WAS your responsibility to see that she had a good time. If she had no friends there, you needed to introduce her to people, and pretty much hang with her that evening, because making her fend for herself with strangers is cruel.

People have done that to me, and I had a horrible time. When you leave someone with strangers, they don't see to it that your guest has a good time. They stay with their "clique" of friends, and then YOUR friend is left to sit against the wall the rest of the night. Or your friend is left to walk around and TRY to mingle with people who don't WANT to be mingled with.

So you should have stayed with her. I don't blame her for leaving. She probably had a rotten time. That is, if she had the kind of time I've had in those situations. That is, also if she didn't know anyone.

Just my opinion. Hugs, Lee