To be honest I dont think she did scare him away. I think he was interested but she was stand offish so he assumed she didn't like him. He offered her food and she said no. He offered her a second coffee and she said no. And that's why the date ended so soon. He then messaged to say thank you for meeting me and added a kiss and she replied thanks too' with no kiss. With all this she's given out a clear signal that she's not interested.
Did you see the flap it put her into for the rest of the vlog? It was like she was suffering from high anxiety, really jumpy and stumbling over her words, having trouble remembering what she needed to say, and kept on laughing nervously.