You know what I did? I got drunk and acted like an idiot. Apparently I was having a serious conversation with her, then I'd walk off for no reason to the other side of the bar. She said at times I wanted nothing to do with her, and was sending her mixed signals. She said I flirted, told her she was really pretty, then apparently I was telling people she was my girlfriend.
I don't remember exactly, but at the end of the night I wasn't sure where she was, so I just left and called an uber.
She texted me the next day asking what happened, if I was okay, and if I remembered any of it.
Alcohol has ruined pretty much every interaction I've had with women.