confessions of a nurse

so i started working at this hospital like 6 months ago and there was this patient who had to stay for weeks because of complications. she was in her twenties and we hit it off pretty well cos i mean how often do u get to bond with a patient right? but then one day when visiting hours were over and the room was empty, she asked me if we could play a game where i pretended to be her mom and she acted like my little girl. at first i thought she was just joking but she got serious about it and explained how she had these fantasies ever since before getting sick. it made me feel weirdly powerful holding back the urge to laugh or freak out...and then one night we did it, we roleplayed this mommy/daughter thing where she would act like a naughty kid and i'd have to discipline her but in this super sexy way that got both of us all worked up. afterwards i felt so guilty about it but also kinda thrilled because hey this was the first time i ever explored my own hidden desires too. i just don't know what to think now... is this normal for someone like me? should i stop seeing her as a patient and ask if we could try stuff outside of work too or just let things go back to normal? any advice you have would mean so much rn.