Ia this girl shy or lost interest or what could it be?

I've been talking to a girl on a dating app usually a few messages a day for the past 2 weeks now, she seems to like me and keeps upping the amount of kisses she sends on her messages to me etc

She told me a few days ago that she thinks I'm cute and would be down to get to know me better so I asked her out and she agreed, however I had to change the location as she doesn't drive and it would cost too much/be too awkward to get to.

She told me she likes the new location and has been before, but when I asked her if she can get there she said "I will see" a few days ago and now yesterday I asked if we are still good to meet on Wednesday (she said she is off work all week) and she just replied saying "not sure"

Has she lost interest or shy etc or what? I told her there's no pressure and asked if anything is wrong too just in case.

She kinda indirectly asked me out herself so I'm a little confused why she wouldn't be more enthusiastic about it all?

Ia this girl shy or lost interest or what could it be?
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