She said

     If I really wanted to hurt hospital workers, would I go around telling everyone about it? I think not. And you can assume many things about Elle, but all I said was that I was her guardian angel, and if she needed anything, to find me. Do I actually expect her to come find me? No. But it's called gratitude. A strange way to express it, maybe. People make all sorts of assumptions. And if you're wondering, she did exactly what she was supposed to do. She knew I was a patient, because I told her who I was. 

    She said nothing at all.