Is it over?

So I (27M) have been talking to this girl (30F) and it’s obvious she likes me. I met her at a summer camp we both volunteer at as cabin counselors. She gave me a ride home after so about 2 hours. We scheduled a date tomorrow. We’ve been texting all week telling each other how excited we are to see each other again. We text each other good morning and she usually does that first.

This morning she texts me that she really likes me and wants to see me, but she’s not ready to date.

What I think is

1. She’s scared about her emotions
2. She met someone else and is keeping me as an option
3. She’s testing me to see if I get angry easy

I would appreciate anyone’s thoughts. I do have severe anxiety and overthink everything, I am going to therapy about it. Thanks in advance