She was talkative. Now she's quiet?

So i met this girl on an online dating site and the same day I started talking to her she was super talkative and answered very quickly the whole day. We exchanged numbers and she even gave me her snapchat. Everything just clicked so well. Then that same night I asked her to meet me for late night food, she said she was tired but still want to and for me to ask her again when I got out of work. Then, nothing. When I got out of work I asked her and nothing. I met her online it says she's still online but she won't return my texts. I sent 4 texts straight that wasn't answered. Which I knew was a bad idea because it seemed desperate. I don't want to date her or anything yet. Just to meet and get food. I didn't eat all day so I was actually hungry. Now I think she's turned off by some reason. Anyone can explain why and maybe how to fix it? I texted her once today and still nothing.
She was talkative. Now she's quiet?
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