I'm completely perplexed.

We met up for dinner at 8pm (midweek date) and eventually progressed to drinks at 9:30~pm. Anyway, it was getting late and we were nearly the only people left in the bar. I forget the topic of conversation but I made a few risqué jokes and she threw a half glass of water at me. This is weird because she was laughing with all the jokes and it came from nowhere.

My first reaction was to pour my drink over her head but I was holding a cocktail and that would've been a bit harsh on her white dress. So, I simply remained composed and walked off to the bathroom. She apologised profusely when I returned. I destroyed her in bed when we left.

What do I make of this? What is the correct reaction?