Client refund request

I got an email yesterday from a student who bought my course who is very upset. She wrote that she completely misinterpreted what the course was going to provide for her and then it’s not what she wanted. When she first contacted me I offered to have a call with her and sent her the zoom information. She was late to the call because she thought it was going to be a phone call. When I emailed her and offered to join the course I sent her a coupon code. She didn’t use it and paid full price. Now she is telling me that she didn’t understand what was in the course. I can understand this because she hasn’t read any of the information I have given her since we started talking. I want to address her concerns and also have absolutely no attachment to whether she stays or goes. How can I have loving thoughts towards her instead of this is her fault for not paying any attention to what I was telling her?