co-worker problem

You mentioned that you like her as a person and a nurse, which is a likely indicator that she isn't the kind of person who would intentionally hurt others, so hopefully she'll be receptive to your concern. I'd suggest speaking with her privately at a time that would work well for both of you- not in the heat of the moment if you're feeling hurt and not when you're swamped with work tasks. It's always best to avoid gossiping with other co-workers about the situation and to avoid accusations ("you always...," "once you said X to so and so," etc.). Best of luck!