I deserve better treatment than this?

She and I have gone out for a few times, and everything had been great. Today, it was totally opposite. I took her to see a greatttt show (and I paid everything), and she acted so grumpy for the whole afternoon. She didn't sleep well last night and got up early today for some stuff. She was tired and became so moody. She didn't even want to answer my questions and became defensive on them when they were just general chat questions to start the click. I shut up for the whole afternoon cuz I really felt that I didn't deserve all this. She didn't even try to initate a conversation and rather text messaged with her friends. I'm quite upset about this. Believe me, other women would be very appreciate for what I had done on her from the beginning. I think I need to ignore her and call it that's it. I can't deal with this. She didn't even ask whether I wanted to go to some other events that she had planned with her friends (since I know them as well.)