Got IOIs from a girl at the gym continuously, talked to her for a bit and asked for her number and she happily gave it to me.

Here is the interaction on text message.

Me: Now you have my number, what are your 2 other wishes?

Her: Hi😀 Great :) Just want to get to know you better, what are you looking for? Im going to train tomorrow afternoon / evening after work, are you at the gym then?

Me: I want a big house, dog and 5 kids! Gonna workout with a friend tomorrow at 4 we can talk when both are done.

Her: Hehe, yes but I can live well with a big house, dog and 5 children! 😅 So nice, then we will talk more tomorrow :).

Me: We will, wear white;)

At the gym i met her and asked her out for a beer the day after, but she was going for vacation to her home town.

She texted me this the day after.

Her: Hi☺️ I unfortunately will go home today (her home town), but you have to enjoy yourself tonight if you go out anyway! :) Then I will be very happy to meet up when I come back again if you want :).

Me: Cool, give me a heads up when you're back.

Her: I will :)!!!

*2 weeks later*

Her: Hi☺️ Hope you're doing well! I'm going back again tomorrow morning. I dont have many plans outside of work, so just let me know if you have the time and want to meet up one day.

Me: Hello stranger :) I want to try out mini golf at a bar collective tomorrow! Meet me at X.

Her: Sounds nice :). What time?

Me: Ill come with the details tomorrow.

Then i woke up to this message from her

Her: Hi :) Sorry, but I was couldn't to travel back to *city* today, so then I will not come to *city* again until tomorrow night. I do not know what your intention is to meet, because I do not know you well enough, but I'm just looking for friendship right now. Not bad with you as a type, you have to know that, but as it is now this is best for me. Just wanted to say from as you know. After I have thought about it, I will therefore not meet privately now, but we will talk at the gym. Hope you understand :).

Me: Do what's best for yourself, but I have enough friend. I wish you good luck.

What happened here? Why did the change her mind at the span of 12 hours?