My date went cold on me and I don't think I handled it well. We went for drinks last night and about an hour into it she just seemed out of it, like she just lost interest and didn't want to be there and got really quiet. I asked her what was wrong and she said "nothing".

I got kind of annoyed and just got the check and we left. She text me 30 minutes later asking why it got so quiet and ask me what happened. I responded and said I didn't know and asked her what happened. She didn't text back and hasn't messaged me since.

Did I handle this well? What's the best course of action here?