California- One of my "friend" heard a rumor from someone else that I supposedly said something about (her which is not true), and went on Facebook and started accusing me. I was so confused and I didn't want to reply back on the Internet for everyone else to see because I thought it was a joke. I called her and asked her what she's talking about and told me I should tell her to her face instead of going around talking sh*t. I denied it cuz it wasn't true and told her to bring that person over so the three of us can talk and so I can confront this person. She doesn't want to tell me the name but still goes on Facebook telling people what I supposedly said and now people are making rude comments about me. Can I sue this "friend" of mine? By the way Ive known her husband for 12 years and not once he's heard me talk sh*t about anyone else