I think you might be reading too much into it. From what you've said, she definitely is keen on you. I understand you're anxious (I'm a super anxious person as well) but give it some time, just keep talking to her without pushing to meet and maybe she'll bring it up! She probably had a bad day or is hungover or whatever, there's probably 100s of reasons why she wasn't as talkative. Give it some time, hopefully it works out for you mate! Keen to hear updates!!