To be fair, the word 'nigger' originally meant 'a lazy, shiftless person". Somewhere at my parents' house, there's an old Miriam-Webster dictionary with that definition listed after the word, but nothing about race. The word's meaning has changed in the recent past, though. I actually Googled 'nigger' to find the original definition, and couldn't find it anywhere.
I don't, however, believe that the woman 'isn't racist', though. I also HATE when people say/do awful/horrible/stupid things, and later throw out the idea that they're 'bipolar'. Give me a goddamn break. I'm surprised she didn't say she also has Tourette's. SMFH