Okay, you are a new nurse and one month into your first job. Stop and listen to the other more experienced nurse. You don't know everything yet and, to be honest, you will always have things come up you need to ask about. Take direction from this nurse. Ask questions about situations. Being the new nurse also means taking your break when told. Nurses need each other to help out with situations.
I find in your posts that you are having a hard time accepting the fact that you are new and don't know everything. You have lots to learn so use this nurse as a resource, not as an enemy. Sorry if this sounds harsh, but it is real life nursing. Anytime you are new in a job, you are low man on the totem pole so to speak. You need to do your job and get along with your coworkers whether you like them or not.