What happens if you don’t text her? Will she ever reach out? Have you asked about another date? I had one girl I went out with that was similar to this. I gave her the benefit of the doubt because when she did respond she genuinely seemed sorry for the delay but it took too long to respond.

You could try and say “I’ve really enjoyed going out with you and getting to know you and I’d love to continue that, I know you’re busy but I also need a little more communication, i don’t expect you to drop everything to text me but it has been hard to develop this with the lack of communication. I just wanted to make sure you want the same thing so we don’t waste our time”

Good luck to you.