@Kelly793 I really wouldn't lose any sleep over this. You are clear in your listing that you work and might not be able to respond right away to messages. This was just an entitled person who thinks only about herself and her needs and desires. Sorry she gave you a bad review because of her own bad attitude.
I had a client who sent me a text message, which woke me up, at 6AM on a Saturday morning, just to ask if I could make him some curtains. I looked at it, cursed, trurned off my ringer, and went back to sleep. When I got up a couple hours later, I saw that he'd resent the message another 5 times. As if that would help. When I contacted him and mentioned that just because he wakes up at 5:30 AM ready to get down to business, doesn't mean everyone does. He said, "Oh, sorry, that was too early, huh?" Uh, yeah.
You could leave a response to her review, something like- "This guest texted me multiple times pre-arrival, expecting immediate responses, despite me clearly stating in my listing and in the booking message that I work full time and can't always respond right away. I suggest she read and respect what hosts say in their listings and messages in the future."