You're kind of right there Smackie, but it was the other way round. I went to the bar to buy us a drink and she told me to meet her over at the sofa in the corner, but she spotted two guys that she knew and stood chatting to them for ages, leaving me sat waiting holding her drink, so I went over and reminded her she was out with me. We then went off to dance and I was dancing with some guys and girls I knew, one of whom was my brother, she was there with us, then she was gone.
None of this really matters though, what matters is that I carried out a stupid act, mainly because I just wanted her to come home, it wasn't aggression aimed at her, just a release in the direction of an object, but it will have scared her for sure and I hate myself for it.
We had a great relationship prior to this and she is the absolute, 100%, love of my life, which is why I feel so terrible.