I looked back at your previous post. Here are my thoughts/questions/comments:
1. She called you a racial slur...did you report this the first time it happened?
2. Was there a history between you and this resident where there was a acrimonious relationship?
Since you are actively looking for other jobs and gave secured interviews, take this experience and build upon it. Make sure you report racial slurs, verbal abuse ASAP. Protect yourself, find out if you can switch patients, etc. Find out the policy in dealing with patients that are verbally abusive, etc. at your next position.
I've had a few patients slur me and make accusations, which I prompted to my supervisor ASAP so that the incident would be reported. As a nurse, I even would make a note in the chart about behavior; it signals changes, or a significance in another intervention, or a incident report, if it warrants behavior that I feel is unsafe-this was allowed at one facility I worked at, even if it was a nurse assistant I was working with, I would document, etc...dealing with patients that may threaten nurses they will see very regularly as a patient who was staying 3 plus months was a violation of the contract they signed when they were admitted...and they had no qualms about discharging them.
It gets better as the years go by to communicate clearly, set boundaries, or communicate with patients who are acutely ill and have a history, such as dementia, etc. And it will happen. If anything, it was a great thing to be removed from this situation.