To complete the story.
We were drinking at a club and she had had too much to drink. Not enough to get messy, just enough to get unreasonable.
I left her with some friends to go talk to my work colleagues who I had just spotted.
After about 10 minutes in which my Australian friend was winding her up and suggesting I was talking to other girls she went looking for me, couldn't find me, and got even madder.
Eventually she found me, stormed up and slapped me.
Pics or gtfo...
Edit. All of my work colleagues were men.