Dear Jack:

It looks like the logical interpretation of her sentence is that she is indeed scared of you ending the beginning relationship (“worried I’m going to disappear on her”). I am guessing that in her mind, you are powerful and you can use your power to hurt her by ending the relationship, so she is afraid of you, the powerful  one.

Last night she didn’t have the patience to come to your place after you finish your meal, “she asked if she could come now“- reads like she formed a strong emotional attachment to you.

You wrote that she told you that “she’s anxious too and overthinks”- I wonder if she told you more about her anxiety and overthinking, if she is willing to give you more details about her anxiety (?)

anita