Long breaks between text messages. What could it mean?

I got a phone number from hinge and she told me that she likes to FaceTime before meeting. This week the conversations have been back and forth with responces ranging between 45 minutes to almost 24 hours. I asked yesterday if she would like to FaceTime the next day and she took 22 hours to respond that she will not be able to but suggested Sunday afternoon (in 4 days). I have a feeling that there is no interest. Could I be wrong? Is this typical? What should I do? Thank you for any suggestions and/or comments
Long breaks between text messages. What could it mean?
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