My long time female friend had a major fall out. Several weeks ago she randomly told me that she thought my sister was not that pretty and had a round shaped head. When I politely asked her if she wouldn't make comments like that to my face she went mad at me and said she had done nothing wrong. She said I have issues, and that she feels like she can't say anything to me without reacting. She said "I just don't think something is pretty what's wrong with that?!". I reacted and told her she is a spoiled, selfish and immature person. I also questioned how she had been raised which she did not like one bit. She told me I ought to say those things to her face and the following week confronted me in person telling me I was a horrible person for what i said to her. She called me a coward for not engaging back with her in person and i walked away. Weeks later she's been trying to slander me to people and make out I'm an awful person to them. She even made up a rumour to a female that I fancied her because my friend thought I did. She recently also told me she sees me as the enemy, hates me with a passion and that she will say what she said again about my sister. I only commented on her behaviour during that incident and she has completely gone crazy. I recently found out she told someone she was wrong to say what she said. But to me she said she has done nothing wrong. Does she genuinely think she's right or is she showing signs of defensive guilt ?