Document, document, document. Every encounter you have with this nurse needs to be recorded. Dates, times, be specific. Take your documentation to your manager, tell her that something has to change. If you get no response, go to your director, and so on. Make sure that this nurse knows her behavior is inappropriate and it will not be tolerated. Remain professional and neutral. Do not say any negative comments about her to any staff members. You can make it through this.